Home / 138,003,208.10-206,828,977.35-73,337,992.10

Finding the Fourth Proportional to 138,003,208.10, 206,828,977.35 and 73,337,992.10

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Solution

The fourth proportional to 138,003,208.10, 206,828,977.35 and 73,337,992.10 is: 109,913,545.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,003,208.10 : 206,828,977.35 = 73,337,992.10 : x
  2. Step 2: Convert to fraction form
    138,003,208.10/206,828,977.35 = 73,337,992.10/x
  3. Step 3: Cross multiply
    138,003,208.10x = 206,828,977.35 × 73,337,992.10
  4. Step 4: Simplify right side
    138,003,208.10x = 15,168,421,906,945,378
  5. Step 5: Solve for x
    x = 15,168,421,906,945,378/138,003,208.10
  6. Step 6: Final answer
    x = 109,913,545.60

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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.