Home / 491,445,700.63-678,190,602.02-268,427,335.86

Finding the Fourth Proportional to 491,445,700.63, 678,190,602.02 and 268,427,335.86

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Solution

The fourth proportional to 491,445,700.63, 678,190,602.02 and 268,427,335.86 is: 370,427,284.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,445,700.63 : 678,190,602.02 = 268,427,335.86 : x
  2. Step 2: Convert to fraction form
    491,445,700.63/678,190,602.02 = 268,427,335.86/x
  3. Step 3: Cross multiply
    491,445,700.63x = 678,190,602.02 × 268,427,335.86
  4. Step 4: Simplify right side
    491,445,700.63x = 182,044,896,505,518,144
  5. Step 5: Solve for x
    x = 182,044,896,505,518,144/491,445,700.63
  6. Step 6: Final answer
    x = 370,427,284.79

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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.