Home / 39,857,587.20-59,786,380.80-12,931,243.20

Finding the Fourth Proportional to 39,857,587.20, 59,786,380.80 and 12,931,243.20

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Solution

The fourth proportional to 39,857,587.20, 59,786,380.80 and 12,931,243.20 is: 19,396,864.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,857,587.20 : 59,786,380.80 = 12,931,243.20 : x
  2. Step 2: Convert to fraction form
    39,857,587.20/59,786,380.80 = 12,931,243.20/x
  3. Step 3: Cross multiply
    39,857,587.20x = 59,786,380.80 × 12,931,243.20
  4. Step 4: Simplify right side
    39,857,587.20x = 773,112,230,172,610.50
  5. Step 5: Solve for x
    x = 773,112,230,172,610.50/39,857,587.20
  6. Step 6: Final answer
    x = 19,396,864.80

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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.