Home / 131,422,149.36-181,418,409.09-81,886,997.27

Finding the Fourth Proportional to 131,422,149.36, 181,418,409.09 and 81,886,997.27

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Solution

The fourth proportional to 131,422,149.36, 181,418,409.09 and 81,886,997.27 is: 113,038,851.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,422,149.36 : 181,418,409.09 = 81,886,997.27 : x
  2. Step 2: Convert to fraction form
    131,422,149.36/181,418,409.09 = 81,886,997.27/x
  3. Step 3: Cross multiply
    131,422,149.36x = 181,418,409.09 × 81,886,997.27
  4. Step 4: Simplify right side
    131,422,149.36x = 14,855,808,768,973,482
  5. Step 5: Solve for x
    x = 14,855,808,768,973,482/131,422,149.36
  6. Step 6: Final answer
    x = 113,038,851.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.