Home / 1,244,208,187.20-1,866,312,280.80-426,048,571.20

Finding the Fourth Proportional to 1,244,208,187.20, 1,866,312,280.80 and 426,048,571.20

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Solution

The fourth proportional to 1,244,208,187.20, 1,866,312,280.80 and 426,048,571.20 is: 639,072,856.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244,208,187.20 : 1,866,312,280.80 = 426,048,571.20 : x
  2. Step 2: Convert to fraction form
    1,244,208,187.20/1,866,312,280.80 = 426,048,571.20/x
  3. Step 3: Cross multiply
    1,244,208,187.20x = 1,866,312,280.80 × 426,048,571.20
  4. Step 4: Simplify right side
    1,244,208,187.20x = 795,139,680,647,853,184
  5. Step 5: Solve for x
    x = 795,139,680,647,853,184/1,244,208,187.20
  6. Step 6: Final answer
    x = 639,072,856.80

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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.