Home / 65,581,212.40-90,469,384.88-39,100,890.65

Finding the Fourth Proportional to 65,581,212.40, 90,469,384.88 and 39,100,890.65

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Solution

The fourth proportional to 65,581,212.40, 90,469,384.88 and 39,100,890.65 is: 53,939,739.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,581,212.40 : 90,469,384.88 = 39,100,890.65 : x
  2. Step 2: Convert to fraction form
    65,581,212.40/90,469,384.88 = 39,100,890.65/x
  3. Step 3: Cross multiply
    65,581,212.40x = 90,469,384.88 × 39,100,890.65
  4. Step 4: Simplify right side
    65,581,212.40x = 3,537,433,525,365,643
  5. Step 5: Solve for x
    x = 3,537,433,525,365,643/65,581,212.40
  6. Step 6: Final answer
    x = 53,939,739.69

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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.