Home / 72,346,092.10-108,519,138.15-66,803,359.30

Finding the Fourth Proportional to 72,346,092.10, 108,519,138.15 and 66,803,359.30

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Solution

The fourth proportional to 72,346,092.10, 108,519,138.15 and 66,803,359.30 is: 100,205,038.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,346,092.10 : 108,519,138.15 = 66,803,359.30 : x
  2. Step 2: Convert to fraction form
    72,346,092.10/108,519,138.15 = 66,803,359.30/x
  3. Step 3: Cross multiply
    72,346,092.10x = 108,519,138.15 × 66,803,359.30
  4. Step 4: Simplify right side
    72,346,092.10x = 7,249,442,976,760,787
  5. Step 5: Solve for x
    x = 7,249,442,976,760,787/72,346,092.10
  6. Step 6: Final answer
    x = 100,205,038.95

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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.