Home / 13,170,955.60-18,178,742.28-8,015,977.36

Finding the Fourth Proportional to 13,170,955.60, 18,178,742.28 and 8,015,977.36

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Solution

The fourth proportional to 13,170,955.60, 18,178,742.28 and 8,015,977.36 is: 11,063,767.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170,955.60 : 18,178,742.28 = 8,015,977.36 : x
  2. Step 2: Convert to fraction form
    13,170,955.60/18,178,742.28 = 8,015,977.36/x
  3. Step 3: Cross multiply
    13,170,955.60x = 18,178,742.28 × 8,015,977.36
  4. Step 4: Simplify right side
    13,170,955.60x = 145,720,386,549,754.78
  5. Step 5: Solve for x
    x = 145,720,386,549,754.78/13,170,955.60
  6. Step 6: Final answer
    x = 11,063,767.20

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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.