Home / 291,253,266.90-436,879,900.35-75,842,514.90

Finding the Fourth Proportional to 291,253,266.90, 436,879,900.35 and 75,842,514.90

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Solution

The fourth proportional to 291,253,266.90, 436,879,900.35 and 75,842,514.90 is: 113,763,772.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,253,266.90 : 436,879,900.35 = 75,842,514.90 : x
  2. Step 2: Convert to fraction form
    291,253,266.90/436,879,900.35 = 75,842,514.90/x
  3. Step 3: Cross multiply
    291,253,266.90x = 436,879,900.35 × 75,842,514.90
  4. Step 4: Simplify right side
    291,253,266.90x = 33,134,070,351,805,396
  5. Step 5: Solve for x
    x = 33,134,070,351,805,396/291,253,266.90
  6. Step 6: Final answer
    x = 113,763,772.35

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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.