Home / 144,707,644.80-217,061,467.20-87,312,016.80

Finding the Fourth Proportional to 144,707,644.80, 217,061,467.20 and 87,312,016.80

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Solution

The fourth proportional to 144,707,644.80, 217,061,467.20 and 87,312,016.80 is: 130,968,025.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,707,644.80 : 217,061,467.20 = 87,312,016.80 : x
  2. Step 2: Convert to fraction form
    144,707,644.80/217,061,467.20 = 87,312,016.80/x
  3. Step 3: Cross multiply
    144,707,644.80x = 217,061,467.20 × 87,312,016.80
  4. Step 4: Simplify right side
    144,707,644.80x = 18,952,074,470,799,048
  5. Step 5: Solve for x
    x = 18,952,074,470,799,048/144,707,644.80
  6. Step 6: Final answer
    x = 130,968,025.20

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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.