Home / 13,545,019.60-18,686,806.24-7,740,687.52

Finding the Fourth Proportional to 13,545,019.60, 18,686,806.24 and 7,740,687.52

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Solution

The fourth proportional to 13,545,019.60, 18,686,806.24 and 7,740,687.52 is: 10,679,108.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545,019.60 : 18,686,806.24 = 7,740,687.52 : x
  2. Step 2: Convert to fraction form
    13,545,019.60/18,686,806.24 = 7,740,687.52/x
  3. Step 3: Cross multiply
    13,545,019.60x = 18,686,806.24 × 7,740,687.52
  4. Step 4: Simplify right side
    13,545,019.60x = 144,648,727,850,626.09
  5. Step 5: Solve for x
    x = 144,648,727,850,626.09/13,545,019.60
  6. Step 6: Final answer
    x = 10,679,108.05

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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.