Home / 614,191,125.38-921,286,688.06-205,247,275.88

Finding the Fourth Proportional to 614,191,125.38, 921,286,688.06 and 205,247,275.88

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Solution

The fourth proportional to 614,191,125.38, 921,286,688.06 and 205,247,275.88 is: 307,870,913.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,191,125.38 : 921,286,688.06 = 205,247,275.88 : x
  2. Step 2: Convert to fraction form
    614,191,125.38/921,286,688.06 = 205,247,275.88/x
  3. Step 3: Cross multiply
    614,191,125.38x = 921,286,688.06 × 205,247,275.88
  4. Step 4: Simplify right side
    614,191,125.38x = 189,091,583,024,728,992
  5. Step 5: Solve for x
    x = 189,091,583,024,728,992/614,191,125.38
  6. Step 6: Final answer
    x = 307,870,913.81

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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.