Home / 579,470,177.40-868,906,667.70-215,777,326.20

Finding the Fourth Proportional to 579,470,177.40, 868,906,667.70 and 215,777,326.20

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Solution

The fourth proportional to 579,470,177.40, 868,906,667.70 and 215,777,326.20 is: 323,554,800.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,470,177.40 : 868,906,667.70 = 215,777,326.20 : x
  2. Step 2: Convert to fraction form
    579,470,177.40/868,906,667.70 = 215,777,326.20/x
  3. Step 3: Cross multiply
    579,470,177.40x = 868,906,667.70 × 215,777,326.20
  4. Step 4: Simplify right side
    579,470,177.40x = 187,490,357,473,657,888
  5. Step 5: Solve for x
    x = 187,490,357,473,657,888/579,470,177.40
  6. Step 6: Final answer
    x = 323,554,800.21

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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.