Home / 72,068,461.94-108,121,127.26-20,950,480.76

Finding the Fourth Proportional to 72,068,461.94, 108,121,127.26 and 20,950,480.76

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Solution

The fourth proportional to 72,068,461.94, 108,121,127.26 and 20,950,480.76 is: 31,431,080.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,068,461.94 : 108,121,127.26 = 20,950,480.76 : x
  2. Step 2: Convert to fraction form
    72,068,461.94/108,121,127.26 = 20,950,480.76/x
  3. Step 3: Cross multiply
    72,068,461.94x = 108,121,127.26 × 20,950,480.76
  4. Step 4: Simplify right side
    72,068,461.94x = 2,265,189,595,817,159.50
  5. Step 5: Solve for x
    x = 2,265,189,595,817,159.50/72,068,461.94
  6. Step 6: Final answer
    x = 31,431,080.04

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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.