Home / 21,551,119.70-32,326,679.55-20,488,237.70

Finding the Fourth Proportional to 21,551,119.70, 32,326,679.55 and 20,488,237.70

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Solution

The fourth proportional to 21,551,119.70, 32,326,679.55 and 20,488,237.70 is: 30,732,356.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,551,119.70 : 32,326,679.55 = 20,488,237.70 : x
  2. Step 2: Convert to fraction form
    21,551,119.70/32,326,679.55 = 20,488,237.70/x
  3. Step 3: Cross multiply
    21,551,119.70x = 32,326,679.55 × 20,488,237.70
  4. Step 4: Simplify right side
    21,551,119.70x = 662,316,694,672,129
  5. Step 5: Solve for x
    x = 662,316,694,672,129/21,551,119.70
  6. Step 6: Final answer
    x = 30,732,356.55

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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.