Home / 130,378,730.40-195,568,095.60-128,465,542.80

Finding the Fourth Proportional to 130,378,730.40, 195,568,095.60 and 128,465,542.80

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Solution

The fourth proportional to 130,378,730.40, 195,568,095.60 and 128,465,542.80 is: 192,698,314.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,378,730.40 : 195,568,095.60 = 128,465,542.80 : x
  2. Step 2: Convert to fraction form
    130,378,730.40/195,568,095.60 = 128,465,542.80/x
  3. Step 3: Cross multiply
    130,378,730.40x = 195,568,095.60 × 128,465,542.80
  4. Step 4: Simplify right side
    130,378,730.40x = 25,123,761,555,616,292
  5. Step 5: Solve for x
    x = 25,123,761,555,616,292/130,378,730.40
  6. Step 6: Final answer
    x = 192,698,314.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.