Home / 768,730,218.78-1,153,291,961.32-223,471,752.78

Finding the Fourth Proportional to 768,730,218.78, 1,153,291,961.32 and 223,471,752.78

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Solution

The fourth proportional to 768,730,218.78, 1,153,291,961.32 and 223,471,752.78 is: 335,264,790.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,730,218.78 : 1,153,291,961.32 = 223,471,752.78 : x
  2. Step 2: Convert to fraction form
    768,730,218.78/1,153,291,961.32 = 223,471,752.78/x
  3. Step 3: Cross multiply
    768,730,218.78x = 1,153,291,961.32 × 223,471,752.78
  4. Step 4: Simplify right side
    768,730,218.78x = 257,728,176,063,264,352
  5. Step 5: Solve for x
    x = 257,728,176,063,264,352/768,730,218.78
  6. Step 6: Final answer
    x = 335,264,790.91

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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.