Home / 243,125,841.72-335,513,765.16-131,616,679.44

Finding the Fourth Proportional to 243,125,841.72, 335,513,765.16 and 131,616,679.44

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Solution

The fourth proportional to 243,125,841.72, 335,513,765.16 and 131,616,679.44 is: 181,631,073.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,125,841.72 : 335,513,765.16 = 131,616,679.44 : x
  2. Step 2: Convert to fraction form
    243,125,841.72/335,513,765.16 = 131,616,679.44/x
  3. Step 3: Cross multiply
    243,125,841.72x = 335,513,765.16 × 131,616,679.44
  4. Step 4: Simplify right side
    243,125,841.72x = 44,159,207,676,771,160
  5. Step 5: Solve for x
    x = 44,159,207,676,771,160/243,125,841.72
  6. Step 6: Final answer
    x = 181,631,073.70

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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.