Home / 825,423,460.02-1,138,650,222.96-490,657,868.28

Finding the Fourth Proportional to 825,423,460.02, 1,138,650,222.96 and 490,657,868.28

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Solution

The fourth proportional to 825,423,460.02, 1,138,650,222.96 and 490,657,868.28 is: 676,849,784.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,423,460.02 : 1,138,650,222.96 = 490,657,868.28 : x
  2. Step 2: Convert to fraction form
    825,423,460.02/1,138,650,222.96 = 490,657,868.28/x
  3. Step 3: Cross multiply
    825,423,460.02x = 1,138,650,222.96 × 490,657,868.28
  4. Step 4: Simplify right side
    825,423,460.02x = 558,687,691,114,100,288
  5. Step 5: Solve for x
    x = 558,687,691,114,100,288/825,423,460.02
  6. Step 6: Final answer
    x = 676,849,784.59

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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.