Home / 838,159,259.10-1,156,685,984.22-480,992,377.64

Finding the Fourth Proportional to 838,159,259.10, 1,156,685,984.22 and 480,992,377.64

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Solution

The fourth proportional to 838,159,259.10, 1,156,685,984.22 and 480,992,377.64 is: 663,784,520.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,159,259.10 : 1,156,685,984.22 = 480,992,377.64 : x
  2. Step 2: Convert to fraction form
    838,159,259.10/1,156,685,984.22 = 480,992,377.64/x
  3. Step 3: Cross multiply
    838,159,259.10x = 1,156,685,984.22 × 480,992,377.64
  4. Step 4: Simplify right side
    838,159,259.10x = 556,357,141,727,057,920
  5. Step 5: Solve for x
    x = 556,357,141,727,057,920/838,159,259.10
  6. Step 6: Final answer
    x = 663,784,520.29

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.