Home / 185,924,629.37-278,920,988.37-76,690,209.89

Finding the Fourth Proportional to 185,924,629.37, 278,920,988.37 and 76,690,209.89

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Solution

The fourth proportional to 185,924,629.37, 278,920,988.37 and 76,690,209.89 is: 115,049,357.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,924,629.37 : 278,920,988.37 = 76,690,209.89 : x
  2. Step 2: Convert to fraction form
    185,924,629.37/278,920,988.37 = 76,690,209.89/x
  3. Step 3: Cross multiply
    185,924,629.37x = 278,920,988.37 × 76,690,209.89
  4. Step 4: Simplify right side
    185,924,629.37x = 21,390,509,140,438,100
  5. Step 5: Solve for x
    x = 21,390,509,140,438,100/185,924,629.37
  6. Step 6: Final answer
    x = 115,049,357.44

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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.