Home / 129,969,386.40-195,028,729.20-49,248,285.60

Finding the Fourth Proportional to 129,969,386.40, 195,028,729.20 and 49,248,285.60

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Solution

The fourth proportional to 129,969,386.40, 195,028,729.20 and 49,248,285.60 is: 73,900,714.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,969,386.40 : 195,028,729.20 = 49,248,285.60 : x
  2. Step 2: Convert to fraction form
    129,969,386.40/195,028,729.20 = 49,248,285.60/x
  3. Step 3: Cross multiply
    129,969,386.40x = 195,028,729.20 × 49,248,285.60
  4. Step 4: Simplify right side
    129,969,386.40x = 9,604,830,555,846,660
  5. Step 5: Solve for x
    x = 9,604,830,555,846,660/129,969,386.40
  6. Step 6: Final answer
    x = 73,900,714.79

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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.