Home / 78,275,114.10-117,412,671.15-73,811,009.70

Finding the Fourth Proportional to 78,275,114.10, 117,412,671.15 and 73,811,009.70

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Solution

The fourth proportional to 78,275,114.10, 117,412,671.15 and 73,811,009.70 is: 110,716,514.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,275,114.10 : 117,412,671.15 = 73,811,009.70 : x
  2. Step 2: Convert to fraction form
    78,275,114.10/117,412,671.15 = 73,811,009.70/x
  3. Step 3: Cross multiply
    78,275,114.10x = 117,412,671.15 × 73,811,009.70
  4. Step 4: Simplify right side
    78,275,114.10x = 8,666,347,809,155,561
  5. Step 5: Solve for x
    x = 8,666,347,809,155,561/78,275,114.10
  6. Step 6: Final answer
    x = 110,716,514.55

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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.