Home / 142,599,666.42-196,788,695.28-79,021,067.64

Finding the Fourth Proportional to 142,599,666.42, 196,788,695.28 and 79,021,067.64

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Solution

The fourth proportional to 142,599,666.42, 196,788,695.28 and 79,021,067.64 is: 109,049,713.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,599,666.42 : 196,788,695.28 = 79,021,067.64 : x
  2. Step 2: Convert to fraction form
    142,599,666.42/196,788,695.28 = 79,021,067.64/x
  3. Step 3: Cross multiply
    142,599,666.42x = 196,788,695.28 × 79,021,067.64
  4. Step 4: Simplify right side
    142,599,666.42x = 15,550,452,799,585,364
  5. Step 5: Solve for x
    x = 15,550,452,799,585,364/142,599,666.42
  6. Step 6: Final answer
    x = 109,049,713.72

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.