Home / 21,132,503.10-31,702,736.61-8,005,852.89

Finding the Fourth Proportional to 21,132,503.10, 31,702,736.61 and 8,005,852.89

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Solution

The fourth proportional to 21,132,503.10, 31,702,736.61 and 8,005,852.89 is: 12,010,287.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,132,503.10 : 31,702,736.61 = 8,005,852.89 : x
  2. Step 2: Convert to fraction form
    21,132,503.10/31,702,736.61 = 8,005,852.89/x
  3. Step 3: Cross multiply
    21,132,503.10x = 31,702,736.61 × 8,005,852.89
  4. Step 4: Simplify right side
    21,132,503.10x = 253,807,445,510,077.28
  5. Step 5: Solve for x
    x = 253,807,445,510,077.28/21,132,503.10
  6. Step 6: Final answer
    x = 12,010,287.86

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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.