Home / 138,707,870.49-207,772,274.05-83,199,667.74

Finding the Fourth Proportional to 138,707,870.49, 207,772,274.05 and 83,199,667.74

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Solution

The fourth proportional to 138,707,870.49, 207,772,274.05 and 83,199,667.74 is: 124,625,834.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,707,870.49 : 207,772,274.05 = 83,199,667.74 : x
  2. Step 2: Convert to fraction form
    138,707,870.49/207,772,274.05 = 83,199,667.74/x
  3. Step 3: Cross multiply
    138,707,870.49x = 207,772,274.05 × 83,199,667.74
  4. Step 4: Simplify right side
    138,707,870.49x = 17,286,584,166,544,224
  5. Step 5: Solve for x
    x = 17,286,584,166,544,224/138,707,870.49
  6. Step 6: Final answer
    x = 124,625,834.90

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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.