Home / 155,436,665.40-233,296,002.90-78,812,998.20

Finding the Fourth Proportional to 155,436,665.40, 233,296,002.90 and 78,812,998.20

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Solution

The fourth proportional to 155,436,665.40, 233,296,002.90 and 78,812,998.20 is: 118,290,992.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,436,665.40 : 233,296,002.90 = 78,812,998.20 : x
  2. Step 2: Convert to fraction form
    155,436,665.40/233,296,002.90 = 78,812,998.20/x
  3. Step 3: Cross multiply
    155,436,665.40x = 233,296,002.90 × 78,812,998.20
  4. Step 4: Simplify right side
    155,436,665.40x = 18,386,757,456,624,896
  5. Step 5: Solve for x
    x = 18,386,757,456,624,896/155,436,665.40
  6. Step 6: Final answer
    x = 118,290,992.73

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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.