Home / 138,808,240.38-206,971,378.04-134,994,569.93

Finding the Fourth Proportional to 138,808,240.38, 206,971,378.04 and 134,994,569.93

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Solution

The fourth proportional to 138,808,240.38, 206,971,378.04 and 134,994,569.93 is: 201,284,967.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,808,240.38 : 206,971,378.04 = 134,994,569.93 : x
  2. Step 2: Convert to fraction form
    138,808,240.38/206,971,378.04 = 134,994,569.93/x
  3. Step 3: Cross multiply
    138,808,240.38x = 206,971,378.04 × 134,994,569.93
  4. Step 4: Simplify right side
    138,808,240.38x = 27,940,012,164,619,420
  5. Step 5: Solve for x
    x = 27,940,012,164,619,420/138,808,240.38
  6. Step 6: Final answer
    x = 201,284,967.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.