Home / 257,839,281.40-387,206,819.70-136,906,929.40

Finding the Fourth Proportional to 257,839,281.40, 387,206,819.70 and 136,906,929.40

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Solution

The fourth proportional to 257,839,281.40, 387,206,819.70 and 136,906,929.40 is: 205,598,217.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,839,281.40 : 387,206,819.70 = 136,906,929.40 : x
  2. Step 2: Convert to fraction form
    257,839,281.40/387,206,819.70 = 136,906,929.40/x
  3. Step 3: Cross multiply
    257,839,281.40x = 387,206,819.70 × 136,906,929.40
  4. Step 4: Simplify right side
    257,839,281.40x = 53,011,296,727,866,432
  5. Step 5: Solve for x
    x = 53,011,296,727,866,432/257,839,281.40
  6. Step 6: Final answer
    x = 205,598,217.77

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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.