Home / 8,274,021.40-12,387,995.70-4,221,753.40

Finding the Fourth Proportional to 8,274,021.40, 12,387,995.70 and 4,221,753.40

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Solution

The fourth proportional to 8,274,021.40, 12,387,995.70 and 4,221,753.40 is: 6,320,875.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,274,021.40 : 12,387,995.70 = 4,221,753.40 : x
  2. Step 2: Convert to fraction form
    8,274,021.40/12,387,995.70 = 4,221,753.40/x
  3. Step 3: Cross multiply
    8,274,021.40x = 12,387,995.70 × 4,221,753.40
  4. Step 4: Simplify right side
    8,274,021.40x = 52,299,062,965,660.38
  5. Step 5: Solve for x
    x = 52,299,062,965,660.38/8,274,021.40
  6. Step 6: Final answer
    x = 6,320,875.96

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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.