Home / 138,724,673.70-191,439,983.04-82,970,093.13

Finding the Fourth Proportional to 138,724,673.70, 191,439,983.04 and 82,970,093.13

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Solution

The fourth proportional to 138,724,673.70, 191,439,983.04 and 82,970,093.13 is: 114,498,688.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,724,673.70 : 191,439,983.04 = 82,970,093.13 : x
  2. Step 2: Convert to fraction form
    138,724,673.70/191,439,983.04 = 82,970,093.13/x
  3. Step 3: Cross multiply
    138,724,673.70x = 191,439,983.04 × 82,970,093.13
  4. Step 4: Simplify right side
    138,724,673.70x = 15,883,793,221,634,418
  5. Step 5: Solve for x
    x = 15,883,793,221,634,418/138,724,673.70
  6. Step 6: Final answer
    x = 114,498,688.65

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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.