Home / 19,129,205.10-28,693,807.65-18,385,187.70

Finding the Fourth Proportional to 19,129,205.10, 28,693,807.65 and 18,385,187.70

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Solution

The fourth proportional to 19,129,205.10, 28,693,807.65 and 18,385,187.70 is: 27,577,781.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,129,205.10 : 28,693,807.65 = 18,385,187.70 : x
  2. Step 2: Convert to fraction form
    19,129,205.10/28,693,807.65 = 18,385,187.70/x
  3. Step 3: Cross multiply
    19,129,205.10x = 28,693,807.65 × 18,385,187.70
  4. Step 4: Simplify right side
    19,129,205.10x = 527,541,039,472,945.88
  5. Step 5: Solve for x
    x = 527,541,039,472,945.88/19,129,205.10
  6. Step 6: Final answer
    x = 27,577,781.55

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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.