Home / 485,412,352.40-728,118,528.60-322,153,677.20

Finding the Fourth Proportional to 485,412,352.40, 728,118,528.60 and 322,153,677.20

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Solution

The fourth proportional to 485,412,352.40, 728,118,528.60 and 322,153,677.20 is: 483,230,515.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,412,352.40 : 728,118,528.60 = 322,153,677.20 : x
  2. Step 2: Convert to fraction form
    485,412,352.40/728,118,528.60 = 322,153,677.20/x
  3. Step 3: Cross multiply
    485,412,352.40x = 728,118,528.60 × 322,153,677.20
  4. Step 4: Simplify right side
    485,412,352.40x = 234,566,061,425,943,360
  5. Step 5: Solve for x
    x = 234,566,061,425,943,360/485,412,352.40
  6. Step 6: Final answer
    x = 483,230,515.80

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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.