Home / 485,814,342.60-728,721,513.90-438,953,056.20

Finding the Fourth Proportional to 485,814,342.60, 728,721,513.90 and 438,953,056.20

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Solution

The fourth proportional to 485,814,342.60, 728,721,513.90 and 438,953,056.20 is: 658,429,584.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,814,342.60 : 728,721,513.90 = 438,953,056.20 : x
  2. Step 2: Convert to fraction form
    485,814,342.60/728,721,513.90 = 438,953,056.20/x
  3. Step 3: Cross multiply
    485,814,342.60x = 728,721,513.90 × 438,953,056.20
  4. Step 4: Simplify right side
    485,814,342.60x = 319,874,535,645,095,744
  5. Step 5: Solve for x
    x = 319,874,535,645,095,744/485,814,342.60
  6. Step 6: Final answer
    x = 658,429,584.30

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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.