Home / 20,400,849.60-30,601,274.40-15,777,312.90

Finding the Fourth Proportional to 20,400,849.60, 30,601,274.40 and 15,777,312.90

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Solution

The fourth proportional to 20,400,849.60, 30,601,274.40 and 15,777,312.90 is: 23,665,969.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,400,849.60 : 30,601,274.40 = 15,777,312.90 : x
  2. Step 2: Convert to fraction form
    20,400,849.60/30,601,274.40 = 15,777,312.90/x
  3. Step 3: Cross multiply
    20,400,849.60x = 30,601,274.40 × 15,777,312.90
  4. Step 4: Simplify right side
    20,400,849.60x = 482,805,881,347,559.75
  5. Step 5: Solve for x
    x = 482,805,881,347,559.75/20,400,849.60
  6. Step 6: Final answer
    x = 23,665,969.35

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1.5x scale

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.