Home / 20,428,503.60-28,191,526.56-11,261,474.40

Finding the Fourth Proportional to 20,428,503.60, 28,191,526.56 and 11,261,474.40

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Solution

The fourth proportional to 20,428,503.60, 28,191,526.56 and 11,261,474.40 is: 15,540,940.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,428,503.60 : 28,191,526.56 = 11,261,474.40 : x
  2. Step 2: Convert to fraction form
    20,428,503.60/28,191,526.56 = 11,261,474.40/x
  3. Step 3: Cross multiply
    20,428,503.60x = 28,191,526.56 × 11,261,474.40
  4. Step 4: Simplify right side
    20,428,503.60x = 317,478,154,652,360.06
  5. Step 5: Solve for x
    x = 317,478,154,652,360.06/20,428,503.60
  6. Step 6: Final answer
    x = 15,540,940.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.