Home / 185,924,628.87-278,920,987.62-76,690,209.39

Finding the Fourth Proportional to 185,924,628.87, 278,920,987.62 and 76,690,209.39

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Solution

The fourth proportional to 185,924,628.87, 278,920,987.62 and 76,690,209.39 is: 115,049,356.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,924,628.87 : 278,920,987.62 = 76,690,209.39 : x
  2. Step 2: Convert to fraction form
    185,924,628.87/278,920,987.62 = 76,690,209.39/x
  3. Step 3: Cross multiply
    185,924,628.87x = 278,920,987.62 × 76,690,209.39
  4. Step 4: Simplify right side
    185,924,628.87x = 21,390,508,943,459,948
  5. Step 5: Solve for x
    x = 21,390,508,943,459,948/185,924,628.87
  6. Step 6: Final answer
    x = 115,049,356.69

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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.