Home / 390,909,035.80-586,233,347.82-157,679,511.76

Finding the Fourth Proportional to 390,909,035.80, 586,233,347.82 and 157,679,511.76

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Solution

The fourth proportional to 390,909,035.80, 586,233,347.82 and 157,679,511.76 is: 236,466,746.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,909,035.80 : 586,233,347.82 = 157,679,511.76 : x
  2. Step 2: Convert to fraction form
    390,909,035.80/586,233,347.82 = 157,679,511.76/x
  3. Step 3: Cross multiply
    390,909,035.80x = 586,233,347.82 × 157,679,511.76
  4. Step 4: Simplify right side
    390,909,035.80x = 92,436,988,061,687,856
  5. Step 5: Solve for x
    x = 92,436,988,061,687,856/390,909,035.80
  6. Step 6: Final answer
    x = 236,466,746.98

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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.