Home / 128,897,891.04-177,882,869.84-70,164,387.04

Finding the Fourth Proportional to 128,897,891.04, 177,882,869.84 and 70,164,387.04

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Solution

The fourth proportional to 128,897,891.04, 177,882,869.84 and 70,164,387.04 is: 96,828,911.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,897,891.04 : 177,882,869.84 = 70,164,387.04 : x
  2. Step 2: Convert to fraction form
    128,897,891.04/177,882,869.84 = 70,164,387.04/x
  3. Step 3: Cross multiply
    128,897,891.04x = 177,882,869.84 × 70,164,387.04
  4. Step 4: Simplify right side
    128,897,891.04x = 12,481,042,527,239,704
  5. Step 5: Solve for x
    x = 12,481,042,527,239,704/128,897,891.04
  6. Step 6: Final answer
    x = 96,828,911.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.