Home / 881,899,930.52-1,217,012,246.32-485,414,443.16

Finding the Fourth Proportional to 881,899,930.52, 1,217,012,246.32 and 485,414,443.16

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Solution

The fourth proportional to 881,899,930.52, 1,217,012,246.32 and 485,414,443.16 is: 669,866,615.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,899,930.52 : 1,217,012,246.32 = 485,414,443.16 : x
  2. Step 2: Convert to fraction form
    881,899,930.52/1,217,012,246.32 = 485,414,443.16/x
  3. Step 3: Cross multiply
    881,899,930.52x = 1,217,012,246.32 × 485,414,443.16
  4. Step 4: Simplify right side
    881,899,930.52x = 590,755,321,866,323,584
  5. Step 5: Solve for x
    x = 590,755,321,866,323,584/881,899,930.52
  6. Step 6: Final answer
    x = 669,866,615.73

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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.