Home / 157,780,969.76-217,733,561.40-88,166,922.68

Finding the Fourth Proportional to 157,780,969.76, 217,733,561.40 and 88,166,922.68

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Solution

The fourth proportional to 157,780,969.76, 217,733,561.40 and 88,166,922.68 is: 121,668,019.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,780,969.76 : 217,733,561.40 = 88,166,922.68 : x
  2. Step 2: Convert to fraction form
    157,780,969.76/217,733,561.40 = 88,166,922.68/x
  3. Step 3: Cross multiply
    157,780,969.76x = 217,733,561.40 × 88,166,922.68
  4. Step 4: Simplify right side
    157,780,969.76x = 19,196,898,072,794,836
  5. Step 5: Solve for x
    x = 19,196,898,072,794,836/157,780,969.76
  6. Step 6: Final answer
    x = 121,668,019.29

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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.