Home / 485,550,776.40-728,074,222.20-178,684,933.20

Finding the Fourth Proportional to 485,550,776.40, 728,074,222.20 and 178,684,933.20

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Solution

The fourth proportional to 485,550,776.40, 728,074,222.20 and 178,684,933.20 is: 267,934,683.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,550,776.40 : 728,074,222.20 = 178,684,933.20 : x
  2. Step 2: Convert to fraction form
    485,550,776.40/728,074,222.20 = 178,684,933.20/x
  3. Step 3: Cross multiply
    485,550,776.40x = 728,074,222.20 × 178,684,933.20
  4. Step 4: Simplify right side
    485,550,776.40x = 130,095,893,758,448,960
  5. Step 5: Solve for x
    x = 130,095,893,758,448,960/485,550,776.40
  6. Step 6: Final answer
    x = 267,934,683.83

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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.