Home / 641,559,515.45-885,200,387.65-363,101,038.88

Finding the Fourth Proportional to 641,559,515.45, 885,200,387.65 and 363,101,038.88

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Solution

The fourth proportional to 641,559,515.45, 885,200,387.65 and 363,101,038.88 is: 500,993,551.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,559,515.45 : 885,200,387.65 = 363,101,038.88 : x
  2. Step 2: Convert to fraction form
    641,559,515.45/885,200,387.65 = 363,101,038.88/x
  3. Step 3: Cross multiply
    641,559,515.45x = 885,200,387.65 × 363,101,038.88
  4. Step 4: Simplify right side
    641,559,515.45x = 321,417,180,367,360,000
  5. Step 5: Solve for x
    x = 321,417,180,367,360,000/641,559,515.45
  6. Step 6: Final answer
    x = 500,993,551.85

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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.