Home / 137,494,329.12-189,738,385.20-75,614,666.40

Finding the Fourth Proportional to 137,494,329.12, 189,738,385.20 and 75,614,666.40

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Solution

The fourth proportional to 137,494,329.12, 189,738,385.20 and 75,614,666.40 is: 104,346,155.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,494,329.12 : 189,738,385.20 = 75,614,666.40 : x
  2. Step 2: Convert to fraction form
    137,494,329.12/189,738,385.20 = 75,614,666.40/x
  3. Step 3: Cross multiply
    137,494,329.12x = 189,738,385.20 × 75,614,666.40
  4. Step 4: Simplify right side
    137,494,329.12x = 14,347,004,700,172,698
  5. Step 5: Solve for x
    x = 14,347,004,700,172,698/137,494,329.12
  6. Step 6: Final answer
    x = 104,346,155.89

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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.