Home / 512,487,040.80-768,730,561.20-236,137,720.80

Finding the Fourth Proportional to 512,487,040.80, 768,730,561.20 and 236,137,720.80

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Solution

The fourth proportional to 512,487,040.80, 768,730,561.20 and 236,137,720.80 is: 354,206,581.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,487,040.80 : 768,730,561.20 = 236,137,720.80 : x
  2. Step 2: Convert to fraction form
    512,487,040.80/768,730,561.20 = 236,137,720.80/x
  3. Step 3: Cross multiply
    512,487,040.80x = 768,730,561.20 × 236,137,720.80
  4. Step 4: Simplify right side
    512,487,040.80x = 181,526,282,631,072,928
  5. Step 5: Solve for x
    x = 181,526,282,631,072,928/512,487,040.80
  6. Step 6: Final answer
    x = 354,206,581.20

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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.