Home / 8,187,693.60-12,291,649.20-5,155,053.60

Finding the Fourth Proportional to 8,187,693.60, 12,291,649.20 and 5,155,053.60

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Solution

The fourth proportional to 8,187,693.60, 12,291,649.20 and 5,155,053.60 is: 7,738,945.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,187,693.60 : 12,291,649.20 = 5,155,053.60 : x
  2. Step 2: Convert to fraction form
    8,187,693.60/12,291,649.20 = 5,155,053.60/x
  3. Step 3: Cross multiply
    8,187,693.60x = 12,291,649.20 × 5,155,053.60
  4. Step 4: Simplify right side
    8,187,693.60x = 63,364,110,458,397.11
  5. Step 5: Solve for x
    x = 63,364,110,458,397.11/8,187,693.60
  6. Step 6: Final answer
    x = 7,738,945.00

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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.