Home / 881,899,956.18-1,217,012,281.62-485,414,468.82

Finding the Fourth Proportional to 881,899,956.18, 1,217,012,281.62 and 485,414,468.82

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Solution

The fourth proportional to 881,899,956.18, 1,217,012,281.62 and 485,414,468.82 is: 669,866,651.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,899,956.18 : 1,217,012,281.62 = 485,414,468.82 : x
  2. Step 2: Convert to fraction form
    881,899,956.18/1,217,012,281.62 = 485,414,468.82/x
  3. Step 3: Cross multiply
    881,899,956.18x = 1,217,012,281.62 × 485,414,468.82
  4. Step 4: Simplify right side
    881,899,956.18x = 590,755,370,229,988,480
  5. Step 5: Solve for x
    x = 590,755,370,229,988,480/881,899,956.18
  6. Step 6: Final answer
    x = 669,866,651.08

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1.5x scale

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.