Home / 137,838,455.10-206,757,682.65-86,820,119.10

Finding the Fourth Proportional to 137,838,455.10, 206,757,682.65 and 86,820,119.10

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Solution

The fourth proportional to 137,838,455.10, 206,757,682.65 and 86,820,119.10 is: 130,230,178.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,838,455.10 : 206,757,682.65 = 86,820,119.10 : x
  2. Step 2: Convert to fraction form
    137,838,455.10/206,757,682.65 = 86,820,119.10/x
  3. Step 3: Cross multiply
    137,838,455.10x = 206,757,682.65 × 86,820,119.10
  4. Step 4: Simplify right side
    137,838,455.10x = 17,950,726,632,513,002
  5. Step 5: Solve for x
    x = 17,950,726,632,513,002/137,838,455.10
  6. Step 6: Final answer
    x = 130,230,178.65

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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.