Home / 21,008,732.40-31,495,602.60-8,887,503.60

Finding the Fourth Proportional to 21,008,732.40, 31,495,602.60 and 8,887,503.60

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Solution

The fourth proportional to 21,008,732.40, 31,495,602.60 and 8,887,503.60 is: 13,323,853.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,008,732.40 : 31,495,602.60 = 8,887,503.60 : x
  2. Step 2: Convert to fraction form
    21,008,732.40/31,495,602.60 = 8,887,503.60/x
  3. Step 3: Cross multiply
    21,008,732.40x = 31,495,602.60 × 8,887,503.60
  4. Step 4: Simplify right side
    21,008,732.40x = 279,917,281,491,669.38
  5. Step 5: Solve for x
    x = 279,917,281,491,669.38/21,008,732.40
  6. Step 6: Final answer
    x = 13,323,853.92

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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.