Home / 491,631,175.02-678,442,996.26-268,608,056.76

Finding the Fourth Proportional to 491,631,175.02, 678,442,996.26 and 268,608,056.76

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Solution

The fourth proportional to 491,631,175.02, 678,442,996.26 and 268,608,056.76 is: 370,674,733.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,631,175.02 : 678,442,996.26 = 268,608,056.76 : x
  2. Step 2: Convert to fraction form
    491,631,175.02/678,442,996.26 = 268,608,056.76/x
  3. Step 3: Cross multiply
    491,631,175.02x = 678,442,996.26 × 268,608,056.76
  4. Step 4: Simplify right side
    491,631,175.02x = 182,235,254,847,830,528
  5. Step 5: Solve for x
    x = 182,235,254,847,830,528/491,631,175.02
  6. Step 6: Final answer
    x = 370,674,733.64

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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.