Home / 747,340,318.80-1,121,010,478.20-436,128,469.20

Finding the Fourth Proportional to 747,340,318.80, 1,121,010,478.20 and 436,128,469.20

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Solution

The fourth proportional to 747,340,318.80, 1,121,010,478.20 and 436,128,469.20 is: 654,192,703.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,340,318.80 : 1,121,010,478.20 = 436,128,469.20 : x
  2. Step 2: Convert to fraction form
    747,340,318.80/1,121,010,478.20 = 436,128,469.20/x
  3. Step 3: Cross multiply
    747,340,318.80x = 1,121,010,478.20 × 436,128,469.20
  4. Step 4: Simplify right side
    747,340,318.80x = 488,904,583,814,525,952
  5. Step 5: Solve for x
    x = 488,904,583,814,525,952/747,340,318.80
  6. Step 6: Final answer
    x = 654,192,703.80

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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.