Home / 287,481,887.64-431,295,402.06-80,220,124.44

Finding the Fourth Proportional to 287,481,887.64, 431,295,402.06 and 80,220,124.44

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Solution

The fourth proportional to 287,481,887.64, 431,295,402.06 and 80,220,124.44 is: 120,350,437.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,481,887.64 : 431,295,402.06 = 80,220,124.44 : x
  2. Step 2: Convert to fraction form
    287,481,887.64/431,295,402.06 = 80,220,124.44/x
  3. Step 3: Cross multiply
    287,481,887.64x = 431,295,402.06 × 80,220,124.44
  4. Step 4: Simplify right side
    287,481,887.64x = 34,598,570,823,653,032
  5. Step 5: Solve for x
    x = 34,598,570,823,653,032/287,481,887.64
  6. Step 6: Final answer
    x = 120,350,437.06

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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.