Home / 130,195,739.50-179,675,719.23-72,248,987.50

Finding the Fourth Proportional to 130,195,739.50, 179,675,719.23 and 72,248,987.50

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Solution

The fourth proportional to 130,195,739.50, 179,675,719.23 and 72,248,987.50 is: 99,706,709.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,195,739.50 : 179,675,719.23 = 72,248,987.50 : x
  2. Step 2: Convert to fraction form
    130,195,739.50/179,675,719.23 = 72,248,987.50/x
  3. Step 3: Cross multiply
    130,195,739.50x = 179,675,719.23 × 72,248,987.50
  4. Step 4: Simplify right side
    130,195,739.50x = 12,981,388,792,701,778
  5. Step 5: Solve for x
    x = 12,981,388,792,701,778/130,195,739.50
  6. Step 6: Final answer
    x = 99,706,709.62

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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.