Home / 398,359,403.72-597,540,226.59-152,791,312.52

Finding the Fourth Proportional to 398,359,403.72, 597,540,226.59 and 152,791,312.52

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Solution

The fourth proportional to 398,359,403.72, 597,540,226.59 and 152,791,312.52 is: 229,187,398.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,359,403.72 : 597,540,226.59 = 152,791,312.52 : x
  2. Step 2: Convert to fraction form
    398,359,403.72/597,540,226.59 = 152,791,312.52/x
  3. Step 3: Cross multiply
    398,359,403.72x = 597,540,226.59 × 152,791,312.52
  4. Step 4: Simplify right side
    398,359,403.72x = 91,298,955,501,196,592
  5. Step 5: Solve for x
    x = 91,298,955,501,196,592/398,359,403.72
  6. Step 6: Final answer
    x = 229,187,398.74

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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.