Home / 7,015,923.54-9,681,778.53-3,960,422.10

Finding the Fourth Proportional to 7,015,923.54, 9,681,778.53 and 3,960,422.10

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Solution

The fourth proportional to 7,015,923.54, 9,681,778.53 and 3,960,422.10 is: 5,465,271.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,015,923.54 : 9,681,778.53 = 3,960,422.10 : x
  2. Step 2: Convert to fraction form
    7,015,923.54/9,681,778.53 = 3,960,422.10/x
  3. Step 3: Cross multiply
    7,015,923.54x = 9,681,778.53 × 3,960,422.10
  4. Step 4: Simplify right side
    7,015,923.54x = 38,343,929,657,517.51
  5. Step 5: Solve for x
    x = 38,343,929,657,517.51/7,015,923.54
  6. Step 6: Final answer
    x = 5,465,271.88

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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.