Home / 215,703,908.60-323,555,862.90-86,331,486.20

Finding the Fourth Proportional to 215,703,908.60, 323,555,862.90 and 86,331,486.20

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Solution

The fourth proportional to 215,703,908.60, 323,555,862.90 and 86,331,486.20 is: 129,497,229.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,703,908.60 : 323,555,862.90 = 86,331,486.20 : x
  2. Step 2: Convert to fraction form
    215,703,908.60/323,555,862.90 = 86,331,486.20/x
  3. Step 3: Cross multiply
    215,703,908.60x = 323,555,862.90 × 86,331,486.20
  4. Step 4: Simplify right side
    215,703,908.60x = 27,933,058,512,880,440
  5. Step 5: Solve for x
    x = 27,933,058,512,880,440/215,703,908.60
  6. Step 6: Final answer
    x = 129,497,229.30

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1.5x scale

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.