Home / 245,015,514.90-367,416,984.15-81,189,969.30

Finding the Fourth Proportional to 245,015,514.90, 367,416,984.15 and 81,189,969.30

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Solution

The fourth proportional to 245,015,514.90, 367,416,984.15 and 81,189,969.30 is: 121,749,733.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,015,514.90 : 367,416,984.15 = 81,189,969.30 : x
  2. Step 2: Convert to fraction form
    245,015,514.90/367,416,984.15 = 81,189,969.30/x
  3. Step 3: Cross multiply
    245,015,514.90x = 367,416,984.15 × 81,189,969.30
  4. Step 4: Simplify right side
    245,015,514.90x = 29,830,573,663,437,084
  5. Step 5: Solve for x
    x = 29,830,573,663,437,084/245,015,514.90
  6. Step 6: Final answer
    x = 121,749,733.59

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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.