Home / 30,331,687.20-45,497,530.80-28,772,793.60

Finding the Fourth Proportional to 30,331,687.20, 45,497,530.80 and 28,772,793.60

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Solution

The fourth proportional to 30,331,687.20, 45,497,530.80 and 28,772,793.60 is: 43,159,190.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,331,687.20 : 45,497,530.80 = 28,772,793.60 : x
  2. Step 2: Convert to fraction form
    30,331,687.20/45,497,530.80 = 28,772,793.60/x
  3. Step 3: Cross multiply
    30,331,687.20x = 45,497,530.80 × 28,772,793.60
  4. Step 4: Simplify right side
    30,331,687.20x = 1,309,091,063,018,042.75
  5. Step 5: Solve for x
    x = 1,309,091,063,018,042.75/30,331,687.20
  6. Step 6: Final answer
    x = 43,159,190.40

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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.