Home / 526,658,631.74-726,788,898.55-291,724,425.91

Finding the Fourth Proportional to 526,658,631.74, 726,788,898.55 and 291,724,425.91

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Solution

The fourth proportional to 526,658,631.74, 726,788,898.55 and 291,724,425.91 is: 402,579,700.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,658,631.74 : 726,788,898.55 = 291,724,425.91 : x
  2. Step 2: Convert to fraction form
    526,658,631.74/726,788,898.55 = 291,724,425.91/x
  3. Step 3: Cross multiply
    526,658,631.74x = 726,788,898.55 × 291,724,425.91
  4. Step 4: Simplify right side
    526,658,631.74x = 212,022,074,187,260,000
  5. Step 5: Solve for x
    x = 212,022,074,187,260,000/526,658,631.74
  6. Step 6: Final answer
    x = 402,579,700.42

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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.