Home / 20,681,572.18-31,036,532.20-7,218,400.18

Finding the Fourth Proportional to 20,681,572.18, 31,036,532.20 and 7,218,400.18

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Solution

The fourth proportional to 20,681,572.18, 31,036,532.20 and 7,218,400.18 is: 10,832,547.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,681,572.18 : 31,036,532.20 = 7,218,400.18 : x
  2. Step 2: Convert to fraction form
    20,681,572.18/31,036,532.20 = 7,218,400.18/x
  3. Step 3: Cross multiply
    20,681,572.18x = 31,036,532.20 × 7,218,400.18
  4. Step 4: Simplify right side
    20,681,572.18x = 224,034,109,619,055.78
  5. Step 5: Solve for x
    x = 224,034,109,619,055.78/20,681,572.18
  6. Step 6: Final answer
    x = 10,832,547.34

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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.