Home / 438,621,963.30-657,932,944.98-180,022,772.70

Finding the Fourth Proportional to 438,621,963.30, 657,932,944.98 and 180,022,772.70

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Solution

The fourth proportional to 438,621,963.30, 657,932,944.98 and 180,022,772.70 is: 270,034,159.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,621,963.30 : 657,932,944.98 = 180,022,772.70 : x
  2. Step 2: Convert to fraction form
    438,621,963.30/657,932,944.98 = 180,022,772.70/x
  3. Step 3: Cross multiply
    438,621,963.30x = 657,932,944.98 × 180,022,772.70
  4. Step 4: Simplify right side
    438,621,963.30x = 118,442,913,005,976,144
  5. Step 5: Solve for x
    x = 118,442,913,005,976,144/438,621,963.30
  6. Step 6: Final answer
    x = 270,034,159.06

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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.