Home / 491,445,699.63-678,190,600.64-268,427,334.86

Finding the Fourth Proportional to 491,445,699.63, 678,190,600.64 and 268,427,334.86

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Solution

The fourth proportional to 491,445,699.63, 678,190,600.64 and 268,427,334.86 is: 370,427,283.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,445,699.63 : 678,190,600.64 = 268,427,334.86 : x
  2. Step 2: Convert to fraction form
    491,445,699.63/678,190,600.64 = 268,427,334.86/x
  3. Step 3: Cross multiply
    491,445,699.63x = 678,190,600.64 × 268,427,334.86
  4. Step 4: Simplify right side
    491,445,699.63x = 182,044,895,459,805,248
  5. Step 5: Solve for x
    x = 182,044,895,459,805,248/491,445,699.63
  6. Step 6: Final answer
    x = 370,427,283.41

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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.