Home / 1,290,816,182.80-1,936,224,274.20-417,415,862.80

Finding the Fourth Proportional to 1,290,816,182.80, 1,936,224,274.20 and 417,415,862.80

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Solution

The fourth proportional to 1,290,816,182.80, 1,936,224,274.20 and 417,415,862.80 is: 626,123,794.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,816,182.80 : 1,936,224,274.20 = 417,415,862.80 : x
  2. Step 2: Convert to fraction form
    1,290,816,182.80/1,936,224,274.20 = 417,415,862.80/x
  3. Step 3: Cross multiply
    1,290,816,182.80x = 1,936,224,274.20 × 417,415,862.80
  4. Step 4: Simplify right side
    1,290,816,182.80x = 808,210,725,989,496,832
  5. Step 5: Solve for x
    x = 808,210,725,989,496,832/1,290,816,182.80
  6. Step 6: Final answer
    x = 626,123,794.20

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Half scale
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Double scale
Find fourth proportional to 1,290,816,183.80, 1,936,224,275.70 and 417,415,863.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.