Home / 53,939,680.40-80,909,520.60-53,043,885.20

Finding the Fourth Proportional to 53,939,680.40, 80,909,520.60 and 53,043,885.20

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Solution

The fourth proportional to 53,939,680.40, 80,909,520.60 and 53,043,885.20 is: 79,565,827.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,939,680.40 : 80,909,520.60 = 53,043,885.20 : x
  2. Step 2: Convert to fraction form
    53,939,680.40/80,909,520.60 = 53,043,885.20/x
  3. Step 3: Cross multiply
    53,939,680.40x = 80,909,520.60 × 53,043,885.20
  4. Step 4: Simplify right side
    53,939,680.40x = 4,291,755,322,293,435
  5. Step 5: Solve for x
    x = 4,291,755,322,293,435/53,939,680.40
  6. Step 6: Final answer
    x = 79,565,827.80

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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.