Home / 31,426,921.56-47,126,639.92-15,855,169.80

Finding the Fourth Proportional to 31,426,921.56, 47,126,639.92 and 15,855,169.80

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Solution

The fourth proportional to 31,426,921.56, 47,126,639.92 and 15,855,169.80 is: 23,775,821.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,426,921.56 : 47,126,639.92 = 15,855,169.80 : x
  2. Step 2: Convert to fraction form
    31,426,921.56/47,126,639.92 = 15,855,169.80/x
  3. Step 3: Cross multiply
    31,426,921.56x = 47,126,639.92 × 15,855,169.80
  4. Step 4: Simplify right side
    31,426,921.56x = 747,200,878,035,058.50
  5. Step 5: Solve for x
    x = 747,200,878,035,058.50/31,426,921.56
  6. Step 6: Final answer
    x = 23,775,821.52

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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.