Home / 158,461,418.09-218,672,537.53-91,478,115.59

Finding the Fourth Proportional to 158,461,418.09, 218,672,537.53 and 91,478,115.59

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Solution

The fourth proportional to 158,461,418.09, 218,672,537.53 and 91,478,115.59 is: 126,237,363.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,461,418.09 : 218,672,537.53 = 91,478,115.59 : x
  2. Step 2: Convert to fraction form
    158,461,418.09/218,672,537.53 = 91,478,115.59/x
  3. Step 3: Cross multiply
    158,461,418.09x = 218,672,537.53 × 91,478,115.59
  4. Step 4: Simplify right side
    158,461,418.09x = 20,003,751,664,527,952
  5. Step 5: Solve for x
    x = 20,003,751,664,527,952/158,461,418.09
  6. Step 6: Final answer
    x = 126,237,363.68

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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.