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Finding the Fourth Proportional to 814,519,572.72, 1,124,599,366.80 and 762,480,870

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Solution

The fourth proportional to 814,519,572.72, 1,124,599,366.80 and 762,480,870 is: 1,052,750,028.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,519,572.72 : 1,124,599,366.80 = 762,480,870 : x
  2. Step 2: Convert to fraction form
    814,519,572.72/1,124,599,366.80 = 762,480,870/x
  3. Step 3: Cross multiply
    814,519,572.72x = 1,124,599,366.80 × 762,480,870
  4. Step 4: Simplify right side
    814,519,572.72x = 857,485,503,599,113,088
  5. Step 5: Solve for x
    x = 857,485,503,599,113,088/814,519,572.72
  6. Step 6: Final answer
    x = 1,052,750,028.75

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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.