Home / 723,330,401.28-1,084,995,601.92-212,727,137.28

Finding the Fourth Proportional to 723,330,401.28, 1,084,995,601.92 and 212,727,137.28

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Solution

The fourth proportional to 723,330,401.28, 1,084,995,601.92 and 212,727,137.28 is: 319,090,705.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,330,401.28 : 1,084,995,601.92 = 212,727,137.28 : x
  2. Step 2: Convert to fraction form
    723,330,401.28/1,084,995,601.92 = 212,727,137.28/x
  3. Step 3: Cross multiply
    723,330,401.28x = 1,084,995,601.92 × 212,727,137.28
  4. Step 4: Simplify right side
    723,330,401.28x = 230,808,008,357,832,096
  5. Step 5: Solve for x
    x = 230,808,008,357,832,096/723,330,401.28
  6. Step 6: Final answer
    x = 319,090,705.92

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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.