Home / 20,657,876.37-30,988,549.24-6,281,068.72

Finding the Fourth Proportional to 20,657,876.37, 30,988,549.24 and 6,281,068.72

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Solution

The fourth proportional to 20,657,876.37, 30,988,549.24 and 6,281,068.72 is: 9,422,130.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,657,876.37 : 30,988,549.24 = 6,281,068.72 : x
  2. Step 2: Convert to fraction form
    20,657,876.37/30,988,549.24 = 6,281,068.72/x
  3. Step 3: Cross multiply
    20,657,876.37x = 30,988,549.24 × 6,281,068.72
  4. Step 4: Simplify right side
    20,657,876.37x = 194,641,207,309,543.75
  5. Step 5: Solve for x
    x = 194,641,207,309,543.75/20,657,876.37
  6. Step 6: Final answer
    x = 9,422,130.51

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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.