Home / 243,387,985.95-335,876,590.17-131,878,797.30

Finding the Fourth Proportional to 243,387,985.95, 335,876,590.17 and 131,878,797.30

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Solution

The fourth proportional to 243,387,985.95, 335,876,590.17 and 131,878,797.30 is: 181,993,373.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,387,985.95 : 335,876,590.17 = 131,878,797.30 : x
  2. Step 2: Convert to fraction form
    243,387,985.95/335,876,590.17 = 131,878,797.30/x
  3. Step 3: Cross multiply
    243,387,985.95x = 335,876,590.17 × 131,878,797.30
  4. Step 4: Simplify right side
    243,387,985.95x = 44,295,000,752,844,600
  5. Step 5: Solve for x
    x = 44,295,000,752,844,600/243,387,985.95
  6. Step 6: Final answer
    x = 181,993,373.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.