Home / 185,924,563.03-278,920,888.89-76,690,143.55

Finding the Fourth Proportional to 185,924,563.03, 278,920,888.89 and 76,690,143.55

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Solution

The fourth proportional to 185,924,563.03, 278,920,888.89 and 76,690,143.55 is: 115,049,257.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,924,563.03 : 278,920,888.89 = 76,690,143.55 : x
  2. Step 2: Convert to fraction form
    185,924,563.03/278,920,888.89 = 76,690,143.55/x
  3. Step 3: Cross multiply
    185,924,563.03x = 278,920,888.89 × 76,690,143.55
  4. Step 4: Simplify right side
    185,924,563.03x = 21,390,483,008,067,700
  5. Step 5: Solve for x
    x = 21,390,483,008,067,700/185,924,563.03
  6. Step 6: Final answer
    x = 115,049,257.93

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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.