Home / 28,462,165.60-39,278,105.40-15,409,708.96

Finding the Fourth Proportional to 28,462,165.60, 39,278,105.40 and 15,409,708.96

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Solution

The fourth proportional to 28,462,165.60, 39,278,105.40 and 15,409,708.96 is: 21,265,569.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,462,165.60 : 39,278,105.40 = 15,409,708.96 : x
  2. Step 2: Convert to fraction form
    28,462,165.60/39,278,105.40 = 15,409,708.96/x
  3. Step 3: Cross multiply
    28,462,165.60x = 39,278,105.40 × 15,409,708.96
  4. Step 4: Simplify right side
    28,462,165.60x = 605,264,172,714,204.38
  5. Step 5: Solve for x
    x = 605,264,172,714,204.38/28,462,165.60
  6. Step 6: Final answer
    x = 21,265,569.92

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1.5x scale

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.