Home / 72,006,231.20-99,368,596-38,966,481.36

Finding the Fourth Proportional to 72,006,231.20, 99,368,596 and 38,966,481.36

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Solution

The fourth proportional to 72,006,231.20, 99,368,596 and 38,966,481.36 is: 53,773,742.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,006,231.20 : 99,368,596 = 38,966,481.36 : x
  2. Step 2: Convert to fraction form
    72,006,231.20/99,368,596 = 38,966,481.36/x
  3. Step 3: Cross multiply
    72,006,231.20x = 99,368,596 × 38,966,481.36
  4. Step 4: Simplify right side
    72,006,231.20x = 3,872,044,543,803,370.50
  5. Step 5: Solve for x
    x = 3,872,044,543,803,370.50/72,006,231.20
  6. Step 6: Final answer
    x = 53,773,742.62

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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.