Home / 520,156,773.16-717,920,629.25-308,581,041.29

Finding the Fourth Proportional to 520,156,773.16, 717,920,629.25 and 308,581,041.29

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Solution

The fourth proportional to 520,156,773.16, 717,920,629.25 and 308,581,041.29 is: 425,903,702.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,156,773.16 : 717,920,629.25 = 308,581,041.29 : x
  2. Step 2: Convert to fraction form
    520,156,773.16/717,920,629.25 = 308,581,041.29/x
  3. Step 3: Cross multiply
    520,156,773.16x = 717,920,629.25 × 308,581,041.29
  4. Step 4: Simplify right side
    520,156,773.16x = 221,536,695,332,404,544
  5. Step 5: Solve for x
    x = 221,536,695,332,404,544/520,156,773.16
  6. Step 6: Final answer
    x = 425,903,702.05

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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.