Home / 215,670,221.40-323,505,332.10-154,448,218.20

Finding the Fourth Proportional to 215,670,221.40, 323,505,332.10 and 154,448,218.20

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Solution

The fourth proportional to 215,670,221.40, 323,505,332.10 and 154,448,218.20 is: 231,672,327.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,670,221.40 : 323,505,332.10 = 154,448,218.20 : x
  2. Step 2: Convert to fraction form
    215,670,221.40/323,505,332.10 = 154,448,218.20/x
  3. Step 3: Cross multiply
    215,670,221.40x = 323,505,332.10 × 154,448,218.20
  4. Step 4: Simplify right side
    215,670,221.40x = 49,964,822,121,044,264
  5. Step 5: Solve for x
    x = 49,964,822,121,044,264/215,670,221.40
  6. Step 6: Final answer
    x = 231,672,327.30

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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.