Home / 825,423,461.02-1,138,650,224.34-490,657,869.28

Finding the Fourth Proportional to 825,423,461.02, 1,138,650,224.34 and 490,657,869.28

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Solution

The fourth proportional to 825,423,461.02, 1,138,650,224.34 and 490,657,869.28 is: 676,849,785.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,423,461.02 : 1,138,650,224.34 = 490,657,869.28 : x
  2. Step 2: Convert to fraction form
    825,423,461.02/1,138,650,224.34 = 490,657,869.28/x
  3. Step 3: Cross multiply
    825,423,461.02x = 1,138,650,224.34 × 490,657,869.28
  4. Step 4: Simplify right side
    825,423,461.02x = 558,687,692,929,858,304
  5. Step 5: Solve for x
    x = 558,687,692,929,858,304/825,423,461.02
  6. Step 6: Final answer
    x = 676,849,785.97

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Double scale
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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.