Home / 38,287,995.20-57,431,992.80-31,485,550.40

Finding the Fourth Proportional to 38,287,995.20, 57,431,992.80 and 31,485,550.40

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Solution

The fourth proportional to 38,287,995.20, 57,431,992.80 and 31,485,550.40 is: 47,228,325.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,287,995.20 : 57,431,992.80 = 31,485,550.40 : x
  2. Step 2: Convert to fraction form
    38,287,995.20/57,431,992.80 = 31,485,550.40/x
  3. Step 3: Cross multiply
    38,287,995.20x = 57,431,992.80 × 31,485,550.40
  4. Step 4: Simplify right side
    38,287,995.20x = 1,808,277,903,876,837
  5. Step 5: Solve for x
    x = 1,808,277,903,876,837/38,287,995.20
  6. Step 6: Final answer
    x = 47,228,325.60

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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.