Home / 82,087,210.80-123,049,600.20-38,880,471.60

Finding the Fourth Proportional to 82,087,210.80, 123,049,600.20 and 38,880,471.60

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Solution

The fourth proportional to 82,087,210.80, 123,049,600.20 and 38,880,471.60 is: 58,282,239.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,087,210.80 : 123,049,600.20 = 38,880,471.60 : x
  2. Step 2: Convert to fraction form
    82,087,210.80/123,049,600.20 = 38,880,471.60/x
  3. Step 3: Cross multiply
    82,087,210.80x = 123,049,600.20 × 38,880,471.60
  4. Step 4: Simplify right side
    82,087,210.80x = 4,784,226,485,967,455
  5. Step 5: Solve for x
    x = 4,784,226,485,967,455/82,087,210.80
  6. Step 6: Final answer
    x = 58,282,239.58

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1.5x scale

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.