Home / 130,759,942.72-180,448,712.40-75,787,685.92

Finding the Fourth Proportional to 130,759,942.72, 180,448,712.40 and 75,787,685.92

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Solution

The fourth proportional to 130,759,942.72, 180,448,712.40 and 75,787,685.92 is: 104,587,001.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,759,942.72 : 180,448,712.40 = 75,787,685.92 : x
  2. Step 2: Convert to fraction form
    130,759,942.72/180,448,712.40 = 75,787,685.92/x
  3. Step 3: Cross multiply
    130,759,942.72x = 180,448,712.40 × 75,787,685.92
  4. Step 4: Simplify right side
    130,759,942.72x = 13,675,790,340,039,610
  5. Step 5: Solve for x
    x = 13,675,790,340,039,610/130,759,942.72
  6. Step 6: Final answer
    x = 104,587,001.61

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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.