Home / 57,329,129.60-86,030,690.16-20,934,473.12

Finding the Fourth Proportional to 57,329,129.60, 86,030,690.16 and 20,934,473.12

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Solution

The fourth proportional to 57,329,129.60, 86,030,690.16 and 20,934,473.12 is: 31,415,219.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,329,129.60 : 86,030,690.16 = 20,934,473.12 : x
  2. Step 2: Convert to fraction form
    57,329,129.60/86,030,690.16 = 20,934,473.12/x
  3. Step 3: Cross multiply
    57,329,129.60x = 86,030,690.16 × 20,934,473.12
  4. Step 4: Simplify right side
    57,329,129.60x = 1,801,007,170,649,568.50
  5. Step 5: Solve for x
    x = 1,801,007,170,649,568.50/57,329,129.60
  6. Step 6: Final answer
    x = 31,415,219.16

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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.