Home / 398,307,389.10-597,120,278.85-152,840,167.98

Finding the Fourth Proportional to 398,307,389.10, 597,120,278.85 and 152,840,167.98

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Solution

The fourth proportional to 398,307,389.10, 597,120,278.85 and 152,840,167.98 is: 229,129,476.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,307,389.10 : 597,120,278.85 = 152,840,167.98 : x
  2. Step 2: Convert to fraction form
    398,307,389.10/597,120,278.85 = 152,840,167.98/x
  3. Step 3: Cross multiply
    398,307,389.10x = 597,120,278.85 × 152,840,167.98
  4. Step 4: Simplify right side
    398,307,389.10x = 91,263,963,723,698,432
  5. Step 5: Solve for x
    x = 91,263,963,723,698,432/398,307,389.10
  6. Step 6: Final answer
    x = 229,129,476.93

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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.