Home / 328,543,500.45-492,783,223.28-86,206,404.45

Finding the Fourth Proportional to 328,543,500.45, 492,783,223.28 and 86,206,404.45

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Solution

The fourth proportional to 328,543,500.45, 492,783,223.28 and 86,206,404.45 is: 129,301,203.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,543,500.45 : 492,783,223.28 = 86,206,404.45 : x
  2. Step 2: Convert to fraction form
    328,543,500.45/492,783,223.28 = 86,206,404.45/x
  3. Step 3: Cross multiply
    328,543,500.45x = 492,783,223.28 × 86,206,404.45
  4. Step 4: Simplify right side
    328,543,500.45x = 42,481,069,851,819,304
  5. Step 5: Solve for x
    x = 42,481,069,851,819,304/328,543,500.45
  6. Step 6: Final answer
    x = 129,301,203.02

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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.