Home / 866,063,008.65-1,299,105,141.80-572,835,122.49

Finding the Fourth Proportional to 866,063,008.65, 1,299,105,141.80 and 572,835,122.49

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Solution

The fourth proportional to 866,063,008.65, 1,299,105,141.80 and 572,835,122.49 is: 859,259,713.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,063,008.65 : 1,299,105,141.80 = 572,835,122.49 : x
  2. Step 2: Convert to fraction form
    866,063,008.65/1,299,105,141.80 = 572,835,122.49/x
  3. Step 3: Cross multiply
    866,063,008.65x = 1,299,105,141.80 × 572,835,122.49
  4. Step 4: Simplify right side
    866,063,008.65x = 744,173,053,027,527,680
  5. Step 5: Solve for x
    x = 744,173,053,027,527,680/866,063,008.65
  6. Step 6: Final answer
    x = 859,259,713.89

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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.