Home / 216,937,561.59-299,392,298.16-122,868,442.65

Finding the Fourth Proportional to 216,937,561.59, 299,392,298.16 and 122,868,442.65

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Solution

The fourth proportional to 216,937,561.59, 299,392,298.16 and 122,868,442.65 is: 169,568,907.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,937,561.59 : 299,392,298.16 = 122,868,442.65 : x
  2. Step 2: Convert to fraction form
    216,937,561.59/299,392,298.16 = 122,868,442.65/x
  3. Step 3: Cross multiply
    216,937,561.59x = 299,392,298.16 × 122,868,442.65
  4. Step 4: Simplify right side
    216,937,561.59x = 36,785,865,416,984,392
  5. Step 5: Solve for x
    x = 36,785,865,416,984,392/216,937,561.59
  6. Step 6: Final answer
    x = 169,568,907.97

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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.