Home / 68,688,082.80-103,032,124.20-68,209,785.90

Finding the Fourth Proportional to 68,688,082.80, 103,032,124.20 and 68,209,785.90

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Solution

The fourth proportional to 68,688,082.80, 103,032,124.20 and 68,209,785.90 is: 102,314,678.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,688,082.80 : 103,032,124.20 = 68,209,785.90 : x
  2. Step 2: Convert to fraction form
    68,688,082.80/103,032,124.20 = 68,209,785.90/x
  3. Step 3: Cross multiply
    68,688,082.80x = 103,032,124.20 × 68,209,785.90
  4. Step 4: Simplify right side
    68,688,082.80x = 7,027,799,132,504,210
  5. Step 5: Solve for x
    x = 7,027,799,132,504,210/68,688,082.80
  6. Step 6: Final answer
    x = 102,314,678.85

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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.