Home / 229,139,800.82-316,239,851.20-128,684,747.14

Finding the Fourth Proportional to 229,139,800.82, 316,239,851.20 and 128,684,747.14

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Solution

The fourth proportional to 229,139,800.82, 316,239,851.20 and 128,684,747.14 is: 177,600,072.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,139,800.82 : 316,239,851.20 = 128,684,747.14 : x
  2. Step 2: Convert to fraction form
    229,139,800.82/316,239,851.20 = 128,684,747.14/x
  3. Step 3: Cross multiply
    229,139,800.82x = 316,239,851.20 × 128,684,747.14
  4. Step 4: Simplify right side
    229,139,800.82x = 40,695,245,287,263,224
  5. Step 5: Solve for x
    x = 40,695,245,287,263,224/229,139,800.82
  6. Step 6: Final answer
    x = 177,600,072.71

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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.