Home / 147,062,209.32-202,946,147.46-81,874,446.12

Finding the Fourth Proportional to 147,062,209.32, 202,946,147.46 and 81,874,446.12

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Solution

The fourth proportional to 147,062,209.32, 202,946,147.46 and 81,874,446.12 is: 112,986,901.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,062,209.32 : 202,946,147.46 = 81,874,446.12 : x
  2. Step 2: Convert to fraction form
    147,062,209.32/202,946,147.46 = 81,874,446.12/x
  3. Step 3: Cross multiply
    147,062,209.32x = 202,946,147.46 × 81,874,446.12
  4. Step 4: Simplify right side
    147,062,209.32x = 16,616,103,415,475,346
  5. Step 5: Solve for x
    x = 16,616,103,415,475,346/147,062,209.32
  6. Step 6: Final answer
    x = 112,986,901.89

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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.