Home / 142,974,799.38-214,364,291.88-72,809,207.34

Finding the Fourth Proportional to 142,974,799.38, 214,364,291.88 and 72,809,207.34

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Solution

The fourth proportional to 142,974,799.38, 214,364,291.88 and 72,809,207.34 is: 109,163,952.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,974,799.38 : 214,364,291.88 = 72,809,207.34 : x
  2. Step 2: Convert to fraction form
    142,974,799.38/214,364,291.88 = 72,809,207.34/x
  3. Step 3: Cross multiply
    142,974,799.38x = 214,364,291.88 × 72,809,207.34
  4. Step 4: Simplify right side
    142,974,799.38x = 15,607,694,173,783,198
  5. Step 5: Solve for x
    x = 15,607,694,173,783,198/142,974,799.38
  6. Step 6: Final answer
    x = 109,163,952.26

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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.