Home / 185,924,630.84-278,920,990.56-76,690,211.36

Finding the Fourth Proportional to 185,924,630.84, 278,920,990.56 and 76,690,211.36

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Solution

The fourth proportional to 185,924,630.84, 278,920,990.56 and 76,690,211.36 is: 115,049,359.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,924,630.84 : 278,920,990.56 = 76,690,211.36 : x
  2. Step 2: Convert to fraction form
    185,924,630.84/278,920,990.56 = 76,690,211.36/x
  3. Step 3: Cross multiply
    185,924,630.84x = 278,920,990.56 × 76,690,211.36
  4. Step 4: Simplify right side
    185,924,630.84x = 21,390,509,718,786,964
  5. Step 5: Solve for x
    x = 21,390,509,718,786,964/185,924,630.84
  6. Step 6: Final answer
    x = 115,049,359.64

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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.