Home / 123,585,280.80-185,377,921.20-69,165,722.40

Finding the Fourth Proportional to 123,585,280.80, 185,377,921.20 and 69,165,722.40

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Solution

The fourth proportional to 123,585,280.80, 185,377,921.20 and 69,165,722.40 is: 103,748,583.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,585,280.80 : 185,377,921.20 = 69,165,722.40 : x
  2. Step 2: Convert to fraction form
    123,585,280.80/185,377,921.20 = 69,165,722.40/x
  3. Step 3: Cross multiply
    123,585,280.80x = 185,377,921.20 × 69,165,722.40
  4. Step 4: Simplify right side
    123,585,280.80x = 12,821,797,836,808,276
  5. Step 5: Solve for x
    x = 12,821,797,836,808,276/123,585,280.80
  6. Step 6: Final answer
    x = 103,748,583.60

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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.