Home / 30,343,419.60-45,515,129.40-12,150,422.70

Finding the Fourth Proportional to 30,343,419.60, 45,515,129.40 and 12,150,422.70

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Solution

The fourth proportional to 30,343,419.60, 45,515,129.40 and 12,150,422.70 is: 18,225,634.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,343,419.60 : 45,515,129.40 = 12,150,422.70 : x
  2. Step 2: Convert to fraction form
    30,343,419.60/45,515,129.40 = 12,150,422.70/x
  3. Step 3: Cross multiply
    30,343,419.60x = 45,515,129.40 × 12,150,422.70
  4. Step 4: Simplify right side
    30,343,419.60x = 553,028,061,455,197.31
  5. Step 5: Solve for x
    x = 553,028,061,455,197.31/30,343,419.60
  6. Step 6: Final answer
    x = 18,225,634.05

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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.