Home / 1,218,044,122.24-1,680,902,587.92-661,127,283.04

Finding the Fourth Proportional to 1,218,044,122.24, 1,680,902,587.92 and 661,127,283.04

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Solution

The fourth proportional to 1,218,044,122.24, 1,680,902,587.92 and 661,127,283.04 is: 912,356,572.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,044,122.24 : 1,680,902,587.92 = 661,127,283.04 : x
  2. Step 2: Convert to fraction form
    1,218,044,122.24/1,680,902,587.92 = 661,127,283.04/x
  3. Step 3: Cross multiply
    1,218,044,122.24x = 1,680,902,587.92 × 661,127,283.04
  4. Step 4: Simplify right side
    1,218,044,122.24x = 1,111,290,561,006,454,272
  5. Step 5: Solve for x
    x = 1,111,290,561,006,454,272/1,218,044,122.24
  6. Step 6: Final answer
    x = 912,356,572.90

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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.