Home / 282,854,545.20-390,336,449.87-157,404,593.78

Finding the Fourth Proportional to 282,854,545.20, 390,336,449.87 and 157,404,593.78

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Solution

The fourth proportional to 282,854,545.20, 390,336,449.87 and 157,404,593.78 is: 217,216,768.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,854,545.20 : 390,336,449.87 = 157,404,593.78 : x
  2. Step 2: Convert to fraction form
    282,854,545.20/390,336,449.87 = 157,404,593.78/x
  3. Step 3: Cross multiply
    282,854,545.20x = 390,336,449.87 × 157,404,593.78
  4. Step 4: Simplify right side
    282,854,545.20x = 61,440,750,326,575,984
  5. Step 5: Solve for x
    x = 61,440,750,326,575,984/282,854,545.20
  6. Step 6: Final answer
    x = 217,216,768.72

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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.