Home / 137,712,808.45-206,569,212.68-129,820,909.60

Finding the Fourth Proportional to 137,712,808.45, 206,569,212.68 and 129,820,909.60

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Solution

The fourth proportional to 137,712,808.45, 206,569,212.68 and 129,820,909.60 is: 194,731,364.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,712,808.45 : 206,569,212.68 = 129,820,909.60 : x
  2. Step 2: Convert to fraction form
    137,712,808.45/206,569,212.68 = 129,820,909.60/x
  3. Step 3: Cross multiply
    137,712,808.45x = 206,569,212.68 × 129,820,909.60
  4. Step 4: Simplify right side
    137,712,808.45x = 26,817,003,085,473,452
  5. Step 5: Solve for x
    x = 26,817,003,085,473,452/137,712,808.45
  6. Step 6: Final answer
    x = 194,731,364.40

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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.