Home / 1,277,665,087.20-1,916,497,630.80-459,482,143.20

Finding the Fourth Proportional to 1,277,665,087.20, 1,916,497,630.80 and 459,482,143.20

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Solution

The fourth proportional to 1,277,665,087.20, 1,916,497,630.80 and 459,482,143.20 is: 689,223,214.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,665,087.20 : 1,916,497,630.80 = 459,482,143.20 : x
  2. Step 2: Convert to fraction form
    1,277,665,087.20/1,916,497,630.80 = 459,482,143.20/x
  3. Step 3: Cross multiply
    1,277,665,087.20x = 1,916,497,630.80 × 459,482,143.20
  4. Step 4: Simplify right side
    1,277,665,087.20x = 880,596,438,837,706,240
  5. Step 5: Solve for x
    x = 880,596,438,837,706,240/1,277,665,087.20
  6. Step 6: Final answer
    x = 689,223,214.80

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Double scale
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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.