Home / 231,439,337.80-347,020,438.14-78,081,998.92

Finding the Fourth Proportional to 231,439,337.80, 347,020,438.14 and 78,081,998.92

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Solution

The fourth proportional to 231,439,337.80, 347,020,438.14 and 78,081,998.92 is: 117,076,248.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,439,337.80 : 347,020,438.14 = 78,081,998.92 : x
  2. Step 2: Convert to fraction form
    231,439,337.80/347,020,438.14 = 78,081,998.92/x
  3. Step 3: Cross multiply
    231,439,337.80x = 347,020,438.14 × 78,081,998.92
  4. Step 4: Simplify right side
    231,439,337.80x = 27,096,049,476,065,408
  5. Step 5: Solve for x
    x = 27,096,049,476,065,408/231,439,337.80
  6. Step 6: Final answer
    x = 117,076,248.72

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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.