Home / 137,974,797.60-190,416,666.78-79,248,795.64

Finding the Fourth Proportional to 137,974,797.60, 190,416,666.78 and 79,248,795.64

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Solution

The fourth proportional to 137,974,797.60, 190,416,666.78 and 79,248,795.64 is: 109,369,912.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,974,797.60 : 190,416,666.78 = 79,248,795.64 : x
  2. Step 2: Convert to fraction form
    137,974,797.60/190,416,666.78 = 79,248,795.64/x
  3. Step 3: Cross multiply
    137,974,797.60x = 190,416,666.78 × 79,248,795.64
  4. Step 4: Simplify right side
    137,974,797.60x = 15,090,291,512,098,198
  5. Step 5: Solve for x
    x = 15,090,291,512,098,198/137,974,797.60
  6. Step 6: Final answer
    x = 109,369,912.29

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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.