Home / 712,181,639.80-1,068,272,459.70-220,893,959.80

Finding the Fourth Proportional to 712,181,639.80, 1,068,272,459.70 and 220,893,959.80

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Solution

The fourth proportional to 712,181,639.80, 1,068,272,459.70 and 220,893,959.80 is: 331,340,939.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,181,639.80 : 1,068,272,459.70 = 220,893,959.80 : x
  2. Step 2: Convert to fraction form
    712,181,639.80/1,068,272,459.70 = 220,893,959.80/x
  3. Step 3: Cross multiply
    712,181,639.80x = 1,068,272,459.70 × 220,893,959.80
  4. Step 4: Simplify right side
    712,181,639.80x = 235,974,933,768,418,944
  5. Step 5: Solve for x
    x = 235,974,933,768,418,944/712,181,639.80
  6. Step 6: Final answer
    x = 331,340,939.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.