Home / 138,724,668.99-191,439,976.59-82,970,088.45

Finding the Fourth Proportional to 138,724,668.99, 191,439,976.59 and 82,970,088.45

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Solution

The fourth proportional to 138,724,668.99, 191,439,976.59 and 82,970,088.45 is: 114,498,682.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,724,668.99 : 191,439,976.59 = 82,970,088.45 : x
  2. Step 2: Convert to fraction form
    138,724,668.99/191,439,976.59 = 82,970,088.45/x
  3. Step 3: Cross multiply
    138,724,668.99x = 191,439,976.59 × 82,970,088.45
  4. Step 4: Simplify right side
    138,724,668.99x = 15,883,791,790,538,230
  5. Step 5: Solve for x
    x = 15,883,791,790,538,230/138,724,668.99
  6. Step 6: Final answer
    x = 114,498,682.22

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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.