Home / 21,386,061.60-32,079,092.40-7,928,138.40

Finding the Fourth Proportional to 21,386,061.60, 32,079,092.40 and 7,928,138.40

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Solution

The fourth proportional to 21,386,061.60, 32,079,092.40 and 7,928,138.40 is: 11,892,207.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,386,061.60 : 32,079,092.40 = 7,928,138.40 : x
  2. Step 2: Convert to fraction form
    21,386,061.60/32,079,092.40 = 7,928,138.40/x
  3. Step 3: Cross multiply
    21,386,061.60x = 32,079,092.40 × 7,928,138.40
  4. Step 4: Simplify right side
    21,386,061.60x = 254,327,484,293,588.16
  5. Step 5: Solve for x
    x = 254,327,484,293,588.16/21,386,061.60
  6. Step 6: Final answer
    x = 11,892,207.60

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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.