Home / 199,722,368.80-298,920,001.20-144,979,328.80

Finding the Fourth Proportional to 199,722,368.80, 298,920,001.20 and 144,979,328.80

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Solution

The fourth proportional to 199,722,368.80, 298,920,001.20 and 144,979,328.80 is: 216,987,317.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,722,368.80 : 298,920,001.20 = 144,979,328.80 : x
  2. Step 2: Convert to fraction form
    199,722,368.80/298,920,001.20 = 144,979,328.80/x
  3. Step 3: Cross multiply
    199,722,368.80x = 298,920,001.20 × 144,979,328.80
  4. Step 4: Simplify right side
    199,722,368.80x = 43,337,221,138,871,200
  5. Step 5: Solve for x
    x = 43,337,221,138,871,200/199,722,368.80
  6. Step 6: Final answer
    x = 216,987,317.94

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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.