Home / 72,808,564.07-100,475,221.31-39,768,834.27

Finding the Fourth Proportional to 72,808,564.07, 100,475,221.31 and 39,768,834.27

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Solution

The fourth proportional to 72,808,564.07, 100,475,221.31 and 39,768,834.27 is: 54,880,665.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,808,564.07 : 100,475,221.31 = 39,768,834.27 : x
  2. Step 2: Convert to fraction form
    72,808,564.07/100,475,221.31 = 39,768,834.27/x
  3. Step 3: Cross multiply
    72,808,564.07x = 100,475,221.31 × 39,768,834.27
  4. Step 4: Simplify right side
    72,808,564.07x = 3,995,782,424,846,033.50
  5. Step 5: Solve for x
    x = 3,995,782,424,846,033.50/72,808,564.07
  6. Step 6: Final answer
    x = 54,880,665.15

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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.