Home / 12,889,849.60-17,787,585.30-7,088,613.40

Finding the Fourth Proportional to 12,889,849.60, 17,787,585.30 and 7,088,613.40

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Solution

The fourth proportional to 12,889,849.60, 17,787,585.30 and 7,088,613.40 is: 9,782,062.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,889,849.60 : 17,787,585.30 = 7,088,613.40 : x
  2. Step 2: Convert to fraction form
    12,889,849.60/17,787,585.30 = 7,088,613.40/x
  3. Step 3: Cross multiply
    12,889,849.60x = 17,787,585.30 × 7,088,613.40
  4. Step 4: Simplify right side
    12,889,849.60x = 126,089,315,511,223.03
  5. Step 5: Solve for x
    x = 126,089,315,511,223.03/12,889,849.60
  6. Step 6: Final answer
    x = 9,782,062.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.