Home / 31,432,407.40-47,054,132.70-18,646,330.60

Finding the Fourth Proportional to 31,432,407.40, 47,054,132.70 and 18,646,330.60

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Solution

The fourth proportional to 31,432,407.40, 47,054,132.70 and 18,646,330.60 is: 27,913,449.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,432,407.40 : 47,054,132.70 = 18,646,330.60 : x
  2. Step 2: Convert to fraction form
    31,432,407.40/47,054,132.70 = 18,646,330.60/x
  3. Step 3: Cross multiply
    31,432,407.40x = 47,054,132.70 × 18,646,330.60
  4. Step 4: Simplify right side
    31,432,407.40x = 877,386,914,420,470.75
  5. Step 5: Solve for x
    x = 877,386,914,420,470.75/31,432,407.40
  6. Step 6: Final answer
    x = 27,913,449.43

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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.