Home / 13,021,418.92-17,969,527.20-7,220,051.50

Finding the Fourth Proportional to 13,021,418.92, 17,969,527.20 and 7,220,051.50

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Solution

The fourth proportional to 13,021,418.92, 17,969,527.20 and 7,220,051.50 is: 9,963,653.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021,418.92 : 17,969,527.20 = 7,220,051.50 : x
  2. Step 2: Convert to fraction form
    13,021,418.92/17,969,527.20 = 7,220,051.50/x
  3. Step 3: Cross multiply
    13,021,418.92x = 17,969,527.20 × 7,220,051.50
  4. Step 4: Simplify right side
    13,021,418.92x = 129,740,911,814,650.80
  5. Step 5: Solve for x
    x = 129,740,911,814,650.80/13,021,418.92
  6. Step 6: Final answer
    x = 9,963,653.93

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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.