Home / 155,270,687.40-232,873,371.90-78,521,567.40

Finding the Fourth Proportional to 155,270,687.40, 232,873,371.90 and 78,521,567.40

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Solution

The fourth proportional to 155,270,687.40, 232,873,371.90 and 78,521,567.40 is: 117,765,835.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,270,687.40 : 232,873,371.90 = 78,521,567.40 : x
  2. Step 2: Convert to fraction form
    155,270,687.40/232,873,371.90 = 78,521,567.40/x
  3. Step 3: Cross multiply
    155,270,687.40x = 232,873,371.90 × 78,521,567.40
  4. Step 4: Simplify right side
    155,270,687.40x = 18,285,582,167,311,116
  5. Step 5: Solve for x
    x = 18,285,582,167,311,116/155,270,687.40
  6. Step 6: Final answer
    x = 117,765,835.09

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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.