Home / 65,680,890.96-90,654,018.30-38,194,674.96

Finding the Fourth Proportional to 65,680,890.96, 90,654,018.30 and 38,194,674.96

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Solution

The fourth proportional to 65,680,890.96, 90,654,018.30 and 38,194,674.96 is: 52,717,018.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,680,890.96 : 90,654,018.30 = 38,194,674.96 : x
  2. Step 2: Convert to fraction form
    65,680,890.96/90,654,018.30 = 38,194,674.96/x
  3. Step 3: Cross multiply
    65,680,890.96x = 90,654,018.30 × 38,194,674.96
  4. Step 4: Simplify right side
    65,680,890.96x = 3,462,500,762,786,391.50
  5. Step 5: Solve for x
    x = 3,462,500,762,786,391.50/65,680,890.96
  6. Step 6: Final answer
    x = 52,717,018.79

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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.