Home / 31,878,503.10-47,812,622.49-9,154,231.74

Finding the Fourth Proportional to 31,878,503.10, 47,812,622.49 and 9,154,231.74

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Solution

The fourth proportional to 31,878,503.10, 47,812,622.49 and 9,154,231.74 is: 13,729,873.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,878,503.10 : 47,812,622.49 = 9,154,231.74 : x
  2. Step 2: Convert to fraction form
    31,878,503.10/47,812,622.49 = 9,154,231.74/x
  3. Step 3: Cross multiply
    31,878,503.10x = 47,812,622.49 × 9,154,231.74
  4. Step 4: Simplify right side
    31,878,503.10x = 437,687,826,370,595.88
  5. Step 5: Solve for x
    x = 437,687,826,370,595.88/31,878,503.10
  6. Step 6: Final answer
    x = 13,729,873.86

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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.