Home / 81,465,495.40-122,339,960.70-43,201,743.40

Finding the Fourth Proportional to 81,465,495.40, 122,339,960.70 and 43,201,743.40

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Solution

The fourth proportional to 81,465,495.40, 122,339,960.70 and 43,201,743.40 is: 64,877,768.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,465,495.40 : 122,339,960.70 = 43,201,743.40 : x
  2. Step 2: Convert to fraction form
    81,465,495.40/122,339,960.70 = 43,201,743.40/x
  3. Step 3: Cross multiply
    81,465,495.40x = 122,339,960.70 × 43,201,743.40
  4. Step 4: Simplify right side
    81,465,495.40x = 5,285,299,589,727,484
  5. Step 5: Solve for x
    x = 5,285,299,589,727,484/81,465,495.40
  6. Step 6: Final answer
    x = 64,877,768.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.