Home / 257,399,437.92-385,881,472-111,723,508.32

Finding the Fourth Proportional to 257,399,437.92, 385,881,472 and 111,723,508.32

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Solution

The fourth proportional to 257,399,437.92, 385,881,472 and 111,723,508.32 is: 167,490,776.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,399,437.92 : 385,881,472 = 111,723,508.32 : x
  2. Step 2: Convert to fraction form
    257,399,437.92/385,881,472 = 111,723,508.32/x
  3. Step 3: Cross multiply
    257,399,437.92x = 385,881,472 × 111,723,508.32
  4. Step 4: Simplify right side
    257,399,437.92x = 43,112,031,847,525,848
  5. Step 5: Solve for x
    x = 43,112,031,847,525,848/257,399,437.92
  6. Step 6: Final answer
    x = 167,490,776.96

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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.