Home / 21,134,678.76-31,693,746.42-7,482,549.96

Finding the Fourth Proportional to 21,134,678.76, 31,693,746.42 and 7,482,549.96

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Solution

The fourth proportional to 21,134,678.76, 31,693,746.42 and 7,482,549.96 is: 11,220,896.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,134,678.76 : 31,693,746.42 = 7,482,549.96 : x
  2. Step 2: Convert to fraction form
    21,134,678.76/31,693,746.42 = 7,482,549.96/x
  3. Step 3: Cross multiply
    21,134,678.76x = 31,693,746.42 × 7,482,549.96
  4. Step 4: Simplify right side
    21,134,678.76x = 237,150,041,007,221.16
  5. Step 5: Solve for x
    x = 237,150,041,007,221.16/21,134,678.76
  6. Step 6: Final answer
    x = 11,220,896.41

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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.