Home / 31,890,513.60-47,835,770.40-29,427,076.80

Finding the Fourth Proportional to 31,890,513.60, 47,835,770.40 and 29,427,076.80

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Solution

The fourth proportional to 31,890,513.60, 47,835,770.40 and 29,427,076.80 is: 44,140,615.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,890,513.60 : 47,835,770.40 = 29,427,076.80 : x
  2. Step 2: Convert to fraction form
    31,890,513.60/47,835,770.40 = 29,427,076.80/x
  3. Step 3: Cross multiply
    31,890,513.60x = 47,835,770.40 × 29,427,076.80
  4. Step 4: Simplify right side
    31,890,513.60x = 1,407,666,889,347,966.75
  5. Step 5: Solve for x
    x = 1,407,666,889,347,966.75/31,890,513.60
  6. Step 6: Final answer
    x = 44,140,615.20

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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.