Home / 881,900,015.28-1,217,012,363.12-485,414,527.92

Finding the Fourth Proportional to 881,900,015.28, 1,217,012,363.12 and 485,414,527.92

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Solution

The fourth proportional to 881,900,015.28, 1,217,012,363.12 and 485,414,527.92 is: 669,866,732.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,900,015.28 : 1,217,012,363.12 = 485,414,527.92 : x
  2. Step 2: Convert to fraction form
    881,900,015.28/1,217,012,363.12 = 485,414,527.92/x
  3. Step 3: Cross multiply
    881,900,015.28x = 1,217,012,363.12 × 485,414,527.92
  4. Step 4: Simplify right side
    881,900,015.28x = 590,755,481,716,698,368
  5. Step 5: Solve for x
    x = 590,755,481,716,698,368/881,900,015.28
  6. Step 6: Final answer
    x = 669,866,732.60

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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.