Home / 212,090,684,754.80-318,186,590,011.92-68,669,756,182.30

Finding the Fourth Proportional to 212,090,684,754.80, 318,186,590,011.92 and 68,669,756,182.30

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Solution

The fourth proportional to 212,090,684,754.80, 318,186,590,011.92 and 68,669,756,182.30 is: 103,021,005,292.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,090,684,754.80 : 318,186,590,011.92 = 68,669,756,182.30 : x
  2. Step 2: Convert to fraction form
    212,090,684,754.80/318,186,590,011.92 = 68,669,756,182.30/x
  3. Step 3: Cross multiply
    212,090,684,754.80x = 318,186,590,011.92 × 68,669,756,182.30
  4. Step 4: Simplify right side
    212,090,684,754.80x = 21,849,795,556,595,998,916,608
  5. Step 5: Solve for x
    x = 21,849,795,556,595,998,916,608/212,090,684,754.80
  6. Step 6: Final answer
    x = 103,021,005,292.41

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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.