Home / 782,854,300.40-1,080,343,205.48-460,996,309.76

Finding the Fourth Proportional to 782,854,300.40, 1,080,343,205.48 and 460,996,309.76

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Solution

The fourth proportional to 782,854,300.40, 1,080,343,205.48 and 460,996,309.76 is: 636,177,422.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,854,300.40 : 1,080,343,205.48 = 460,996,309.76 : x
  2. Step 2: Convert to fraction form
    782,854,300.40/1,080,343,205.48 = 460,996,309.76/x
  3. Step 3: Cross multiply
    782,854,300.40x = 1,080,343,205.48 × 460,996,309.76
  4. Step 4: Simplify right side
    782,854,300.40x = 498,034,231,000,569,408
  5. Step 5: Solve for x
    x = 498,034,231,000,569,408/782,854,300.40
  6. Step 6: Final answer
    x = 636,177,422.47

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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.