Home / 28,107,734.40-42,161,601.60-13,740,019.20

Finding the Fourth Proportional to 28,107,734.40, 42,161,601.60 and 13,740,019.20

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Solution

The fourth proportional to 28,107,734.40, 42,161,601.60 and 13,740,019.20 is: 20,610,028.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,107,734.40 : 42,161,601.60 = 13,740,019.20 : x
  2. Step 2: Convert to fraction form
    28,107,734.40/42,161,601.60 = 13,740,019.20/x
  3. Step 3: Cross multiply
    28,107,734.40x = 42,161,601.60 × 13,740,019.20
  4. Step 4: Simplify right side
    28,107,734.40x = 579,301,215,486,750.75
  5. Step 5: Solve for x
    x = 579,301,215,486,750.75/28,107,734.40
  6. Step 6: Final answer
    x = 20,610,028.80

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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.