Home / 13,545,881.56-18,693,329.22-7,744,784.78

Finding the Fourth Proportional to 13,545,881.56, 18,693,329.22 and 7,744,784.78

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Solution

The fourth proportional to 13,545,881.56, 18,693,329.22 and 7,744,784.78 is: 10,687,810.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545,881.56 : 18,693,329.22 = 7,744,784.78 : x
  2. Step 2: Convert to fraction form
    13,545,881.56/18,693,329.22 = 7,744,784.78/x
  3. Step 3: Cross multiply
    13,545,881.56x = 18,693,329.22 × 7,744,784.78
  4. Step 4: Simplify right side
    13,545,881.56x = 144,775,811,630,585.28
  5. Step 5: Solve for x
    x = 144,775,811,630,585.28/13,545,881.56
  6. Step 6: Final answer
    x = 10,687,810.24

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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.