Home / 20,347,979.80-30,521,969.70-7,565,839.60

Finding the Fourth Proportional to 20,347,979.80, 30,521,969.70 and 7,565,839.60

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Solution

The fourth proportional to 20,347,979.80, 30,521,969.70 and 7,565,839.60 is: 11,348,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,347,979.80 : 30,521,969.70 = 7,565,839.60 : x
  2. Step 2: Convert to fraction form
    20,347,979.80/30,521,969.70 = 7,565,839.60/x
  3. Step 3: Cross multiply
    20,347,979.80x = 30,521,969.70 × 7,565,839.60
  4. Step 4: Simplify right side
    20,347,979.80x = 230,924,327,026,260.09
  5. Step 5: Solve for x
    x = 230,924,327,026,260.09/20,347,979.80
  6. Step 6: Final answer
    x = 11,348,759.40

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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.