Home / 19,382,430.40-29,073,645.60-13,335,812.80

Finding the Fourth Proportional to 19,382,430.40, 29,073,645.60 and 13,335,812.80

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Solution

The fourth proportional to 19,382,430.40, 29,073,645.60 and 13,335,812.80 is: 20,003,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,382,430.40 : 29,073,645.60 = 13,335,812.80 : x
  2. Step 2: Convert to fraction form
    19,382,430.40/29,073,645.60 = 13,335,812.80/x
  3. Step 3: Cross multiply
    19,382,430.40x = 29,073,645.60 × 13,335,812.80
  4. Step 4: Simplify right side
    19,382,430.40x = 387,720,695,135,143.75
  5. Step 5: Solve for x
    x = 387,720,695,135,143.75/19,382,430.40
  6. Step 6: Final answer
    x = 20,003,719.20

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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.