Home / 208,008,904.20-312,013,356.30-147,542,728.20

Finding the Fourth Proportional to 208,008,904.20, 312,013,356.30 and 147,542,728.20

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Solution

The fourth proportional to 208,008,904.20, 312,013,356.30 and 147,542,728.20 is: 221,314,092.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,008,904.20 : 312,013,356.30 = 147,542,728.20 : x
  2. Step 2: Convert to fraction form
    208,008,904.20/312,013,356.30 = 147,542,728.20/x
  3. Step 3: Cross multiply
    208,008,904.20x = 312,013,356.30 × 147,542,728.20
  4. Step 4: Simplify right side
    208,008,904.20x = 46,035,301,823,340,656
  5. Step 5: Solve for x
    x = 46,035,301,823,340,656/208,008,904.20
  6. Step 6: Final answer
    x = 221,314,092.30

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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.