Home / 15,047,876.04-20,766,190.98-8,172,407.40

Finding the Fourth Proportional to 15,047,876.04, 20,766,190.98 and 8,172,407.40

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Solution

The fourth proportional to 15,047,876.04, 20,766,190.98 and 8,172,407.40 is: 11,277,988.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,047,876.04 : 20,766,190.98 = 8,172,407.40 : x
  2. Step 2: Convert to fraction form
    15,047,876.04/20,766,190.98 = 8,172,407.40/x
  3. Step 3: Cross multiply
    15,047,876.04x = 20,766,190.98 × 8,172,407.40
  4. Step 4: Simplify right side
    15,047,876.04x = 169,709,772,834,765.25
  5. Step 5: Solve for x
    x = 169,709,772,834,765.25/15,047,876.04
  6. Step 6: Final answer
    x = 11,277,988.49

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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.