Home / 133,793,129.40-200,689,694.10-99,780,905.40

Finding the Fourth Proportional to 133,793,129.40, 200,689,694.10 and 99,780,905.40

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Solution

The fourth proportional to 133,793,129.40, 200,689,694.10 and 99,780,905.40 is: 149,671,358.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,793,129.40 : 200,689,694.10 = 99,780,905.40 : x
  2. Step 2: Convert to fraction form
    133,793,129.40/200,689,694.10 = 99,780,905.40/x
  3. Step 3: Cross multiply
    133,793,129.40x = 200,689,694.10 × 99,780,905.40
  4. Step 4: Simplify right side
    133,793,129.40x = 20,024,999,381,747,040
  5. Step 5: Solve for x
    x = 20,024,999,381,747,040/133,793,129.40
  6. Step 6: Final answer
    x = 149,671,358.10

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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.