Home / 426,352,358.95-639,589,544.22-131,272,445.77

Finding the Fourth Proportional to 426,352,358.95, 639,589,544.22 and 131,272,445.77

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Solution

The fourth proportional to 426,352,358.95, 639,589,544.22 and 131,272,445.77 is: 196,927,452.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,352,358.95 : 639,589,544.22 = 131,272,445.77 : x
  2. Step 2: Convert to fraction form
    426,352,358.95/639,589,544.22 = 131,272,445.77/x
  3. Step 3: Cross multiply
    426,352,358.95x = 639,589,544.22 × 131,272,445.77
  4. Step 4: Simplify right side
    426,352,358.95x = 83,960,483,758,678,976
  5. Step 5: Solve for x
    x = 83,960,483,758,678,976/426,352,358.95
  6. Step 6: Final answer
    x = 196,927,452.13

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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.