Home / 79,131,186.80-118,602,301.80-40,772,956.40

Finding the Fourth Proportional to 79,131,186.80, 118,602,301.80 and 40,772,956.40

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Solution

The fourth proportional to 79,131,186.80, 118,602,301.80 and 40,772,956.40 is: 61,110,753.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,131,186.80 : 118,602,301.80 = 40,772,956.40 : x
  2. Step 2: Convert to fraction form
    79,131,186.80/118,602,301.80 = 40,772,956.40/x
  3. Step 3: Cross multiply
    79,131,186.80x = 118,602,301.80 × 40,772,956.40
  4. Step 4: Simplify right side
    79,131,186.80x = 4,835,766,480,231,041
  5. Step 5: Solve for x
    x = 4,835,766,480,231,041/79,131,186.80
  6. Step 6: Final answer
    x = 61,110,753.87

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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.