Home / 78,755,029.80-118,097,115.30-30,216,751.80

Finding the Fourth Proportional to 78,755,029.80, 118,097,115.30 and 30,216,751.80

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Solution

The fourth proportional to 78,755,029.80, 118,097,115.30 and 30,216,751.80 is: 45,311,534.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,755,029.80 : 118,097,115.30 = 30,216,751.80 : x
  2. Step 2: Convert to fraction form
    78,755,029.80/118,097,115.30 = 30,216,751.80/x
  3. Step 3: Cross multiply
    78,755,029.80x = 118,097,115.30 × 30,216,751.80
  4. Step 4: Simplify right side
    78,755,029.80x = 3,568,511,221,316,082.50
  5. Step 5: Solve for x
    x = 3,568,511,221,316,082.50/78,755,029.80
  6. Step 6: Final answer
    x = 45,311,534.14

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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.