Home / 138,724,628.60-191,439,920.88-82,970,048.04

Finding the Fourth Proportional to 138,724,628.60, 191,439,920.88 and 82,970,048.04

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Solution

The fourth proportional to 138,724,628.60, 191,439,920.88 and 82,970,048.04 is: 114,498,626.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,724,628.60 : 191,439,920.88 = 82,970,048.04 : x
  2. Step 2: Convert to fraction form
    138,724,628.60/191,439,920.88 = 82,970,048.04/x
  3. Step 3: Cross multiply
    138,724,628.60x = 191,439,920.88 × 82,970,048.04
  4. Step 4: Simplify right side
    138,724,628.60x = 15,883,779,432,187,400
  5. Step 5: Solve for x
    x = 15,883,779,432,187,400/138,724,628.60
  6. Step 6: Final answer
    x = 114,498,626.47

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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.