Home / 130,378,712.40-195,568,068.60-39,506,821.20

Finding the Fourth Proportional to 130,378,712.40, 195,568,068.60 and 39,506,821.20

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Solution

The fourth proportional to 130,378,712.40, 195,568,068.60 and 39,506,821.20 is: 59,260,231.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,378,712.40 : 195,568,068.60 = 39,506,821.20 : x
  2. Step 2: Convert to fraction form
    130,378,712.40/195,568,068.60 = 39,506,821.20/x
  3. Step 3: Cross multiply
    130,378,712.40x = 195,568,068.60 × 39,506,821.20
  4. Step 4: Simplify right side
    130,378,712.40x = 7,726,272,718,609,535
  5. Step 5: Solve for x
    x = 7,726,272,718,609,535/130,378,712.40
  6. Step 6: Final answer
    x = 59,260,231.80

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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.