Home / 81,465,491.40-122,339,954.70-43,201,739.40

Finding the Fourth Proportional to 81,465,491.40, 122,339,954.70 and 43,201,739.40

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Solution

The fourth proportional to 81,465,491.40, 122,339,954.70 and 43,201,739.40 is: 64,877,762.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,465,491.40 : 122,339,954.70 = 43,201,739.40 : x
  2. Step 2: Convert to fraction form
    81,465,491.40/122,339,954.70 = 43,201,739.40/x
  3. Step 3: Cross multiply
    81,465,491.40x = 122,339,954.70 × 43,201,739.40
  4. Step 4: Simplify right side
    81,465,491.40x = 5,285,298,841,157,205
  5. Step 5: Solve for x
    x = 5,285,298,841,157,205/81,465,491.40
  6. Step 6: Final answer
    x = 64,877,762.97

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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.