Home / 158,102,708.72-218,132,021.40-88,477,026.80

Finding the Fourth Proportional to 158,102,708.72, 218,132,021.40 and 88,477,026.80

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Solution

The fourth proportional to 158,102,708.72, 218,132,021.40 and 88,477,026.80 is: 122,070,474.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,102,708.72 : 218,132,021.40 = 88,477,026.80 : x
  2. Step 2: Convert to fraction form
    158,102,708.72/218,132,021.40 = 88,477,026.80/x
  3. Step 3: Cross multiply
    158,102,708.72x = 218,132,021.40 × 88,477,026.80
  4. Step 4: Simplify right side
    158,102,708.72x = 19,299,672,703,345,972
  5. Step 5: Solve for x
    x = 19,299,672,703,345,972/158,102,708.72
  6. Step 6: Final answer
    x = 122,070,474.69

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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.