Home / 20,287,070.40-27,999,028.08-12,554,603.76

Finding the Fourth Proportional to 20,287,070.40, 27,999,028.08 and 12,554,603.76

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Solution

The fourth proportional to 20,287,070.40, 27,999,028.08 and 12,554,603.76 is: 17,327,129.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,287,070.40 : 27,999,028.08 = 12,554,603.76 : x
  2. Step 2: Convert to fraction form
    20,287,070.40/27,999,028.08 = 12,554,603.76/x
  3. Step 3: Cross multiply
    20,287,070.40x = 27,999,028.08 × 12,554,603.76
  4. Step 4: Simplify right side
    20,287,070.40x = 351,516,703,209,513.56
  5. Step 5: Solve for x
    x = 351,516,703,209,513.56/20,287,070.40
  6. Step 6: Final answer
    x = 17,327,129.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.