Home / 7,720,291.60-10,655,280.12-4,283,639.80

Finding the Fourth Proportional to 7,720,291.60, 10,655,280.12 and 4,283,639.80

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Solution

The fourth proportional to 7,720,291.60, 10,655,280.12 and 4,283,639.80 is: 5,912,131.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720,291.60 : 10,655,280.12 = 4,283,639.80 : x
  2. Step 2: Convert to fraction form
    7,720,291.60/10,655,280.12 = 4,283,639.80/x
  3. Step 3: Cross multiply
    7,720,291.60x = 10,655,280.12 × 4,283,639.80
  4. Step 4: Simplify right side
    7,720,291.60x = 45,643,382,002,180.77
  5. Step 5: Solve for x
    x = 45,643,382,002,180.77/7,720,291.60
  6. Step 6: Final answer
    x = 5,912,131.87

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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.