Home / 309,577,875.16-427,204,573.86-168,449,649.78

Finding the Fourth Proportional to 309,577,875.16, 427,204,573.86 and 168,449,649.78

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Solution

The fourth proportional to 309,577,875.16, 427,204,573.86 and 168,449,649.78 is: 232,453,500.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,577,875.16 : 427,204,573.86 = 168,449,649.78 : x
  2. Step 2: Convert to fraction form
    309,577,875.16/427,204,573.86 = 168,449,649.78/x
  3. Step 3: Cross multiply
    309,577,875.16x = 427,204,573.86 × 168,449,649.78
  4. Step 4: Simplify right side
    309,577,875.16x = 71,962,460,851,131,144
  5. Step 5: Solve for x
    x = 71,962,460,851,131,144/309,577,875.16
  6. Step 6: Final answer
    x = 232,453,500.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.