Home / 25,898,086.40-38,847,129.60-21,111,180.80

Finding the Fourth Proportional to 25,898,086.40, 38,847,129.60 and 21,111,180.80

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Solution

The fourth proportional to 25,898,086.40, 38,847,129.60 and 21,111,180.80 is: 31,666,771.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,898,086.40 : 38,847,129.60 = 21,111,180.80 : x
  2. Step 2: Convert to fraction form
    25,898,086.40/38,847,129.60 = 21,111,180.80/x
  3. Step 3: Cross multiply
    25,898,086.40x = 38,847,129.60 × 21,111,180.80
  4. Step 4: Simplify right side
    25,898,086.40x = 820,108,776,546,631.75
  5. Step 5: Solve for x
    x = 820,108,776,546,631.75/25,898,086.40
  6. Step 6: Final answer
    x = 31,666,771.20

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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.