Home / 52,156,979.80-78,235,469.70-38,720,051.80

Finding the Fourth Proportional to 52,156,979.80, 78,235,469.70 and 38,720,051.80

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Solution

The fourth proportional to 52,156,979.80, 78,235,469.70 and 38,720,051.80 is: 58,080,077.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,156,979.80 : 78,235,469.70 = 38,720,051.80 : x
  2. Step 2: Convert to fraction form
    52,156,979.80/78,235,469.70 = 38,720,051.80/x
  3. Step 3: Cross multiply
    52,156,979.80x = 78,235,469.70 × 38,720,051.80
  4. Step 4: Simplify right side
    52,156,979.80x = 3,029,281,439,381,330.50
  5. Step 5: Solve for x
    x = 3,029,281,439,381,330.50/52,156,979.80
  6. Step 6: Final answer
    x = 58,080,077.70

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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.