Home / 152,231,981-210,080,243.22-82,617,343.88

Finding the Fourth Proportional to 152,231,981, 210,080,243.22 and 82,617,343.88

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Solution

The fourth proportional to 152,231,981, 210,080,243.22 and 82,617,343.88 is: 114,011,993.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,231,981 : 210,080,243.22 = 82,617,343.88 : x
  2. Step 2: Convert to fraction form
    152,231,981/210,080,243.22 = 82,617,343.88/x
  3. Step 3: Cross multiply
    152,231,981x = 210,080,243.22 × 82,617,343.88
  4. Step 4: Simplify right side
    152,231,981x = 17,356,271,696,500,778
  5. Step 5: Solve for x
    x = 17,356,271,696,500,778/152,231,981
  6. Step 6: Final answer
    x = 114,011,993.95

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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.