Home / 69,082,411.90-103,623,617.85-21,207,135.10

Finding the Fourth Proportional to 69,082,411.90, 103,623,617.85 and 21,207,135.10

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Solution

The fourth proportional to 69,082,411.90, 103,623,617.85 and 21,207,135.10 is: 31,810,702.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,082,411.90 : 103,623,617.85 = 21,207,135.10 : x
  2. Step 2: Convert to fraction form
    69,082,411.90/103,623,617.85 = 21,207,135.10/x
  3. Step 3: Cross multiply
    69,082,411.90x = 103,623,617.85 × 21,207,135.10
  4. Step 4: Simplify right side
    69,082,411.90x = 2,197,560,063,295,721.50
  5. Step 5: Solve for x
    x = 2,197,560,063,295,721.50/69,082,411.90
  6. Step 6: Final answer
    x = 31,810,702.65

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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.