Home / 440,120,368.80-660,180,553.20-210,537,856.80

Finding the Fourth Proportional to 440,120,368.80, 660,180,553.20 and 210,537,856.80

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Solution

The fourth proportional to 440,120,368.80, 660,180,553.20 and 210,537,856.80 is: 315,806,785.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,120,368.80 : 660,180,553.20 = 210,537,856.80 : x
  2. Step 2: Convert to fraction form
    440,120,368.80/660,180,553.20 = 210,537,856.80/x
  3. Step 3: Cross multiply
    440,120,368.80x = 660,180,553.20 × 210,537,856.80
  4. Step 4: Simplify right side
    440,120,368.80x = 138,992,998,771,766,400
  5. Step 5: Solve for x
    x = 138,992,998,771,766,400/440,120,368.80
  6. Step 6: Final answer
    x = 315,806,785.20

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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.