Home / 216,780,868.89-299,153,845.35-117,659,488.95

Finding the Fourth Proportional to 216,780,868.89, 299,153,845.35 and 117,659,488.95

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Solution

The fourth proportional to 216,780,868.89, 299,153,845.35 and 117,659,488.95 is: 162,368,057.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,780,868.89 : 299,153,845.35 = 117,659,488.95 : x
  2. Step 2: Convert to fraction form
    216,780,868.89/299,153,845.35 = 117,659,488.95/x
  3. Step 3: Cross multiply
    216,780,868.89x = 299,153,845.35 × 117,659,488.95
  4. Step 4: Simplify right side
    216,780,868.89x = 35,198,288,561,308,336
  5. Step 5: Solve for x
    x = 35,198,288,561,308,336/216,780,868.89
  6. Step 6: Final answer
    x = 162,368,057.39

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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.