Home / 747,961,434.78-1,121,888,941.26-230,337,900.78

Finding the Fourth Proportional to 747,961,434.78, 1,121,888,941.26 and 230,337,900.78

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Solution

The fourth proportional to 747,961,434.78, 1,121,888,941.26 and 230,337,900.78 is: 345,490,464.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,961,434.78 : 1,121,888,941.26 = 230,337,900.78 : x
  2. Step 2: Convert to fraction form
    747,961,434.78/1,121,888,941.26 = 230,337,900.78/x
  3. Step 3: Cross multiply
    747,961,434.78x = 1,121,888,941.26 × 230,337,900.78
  4. Step 4: Simplify right side
    747,961,434.78x = 258,413,543,638,125,120
  5. Step 5: Solve for x
    x = 258,413,543,638,125,120/747,961,434.78
  6. Step 6: Final answer
    x = 345,490,464.64

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1.5x scale

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.