Home / 9,290,509.50-12,820,903.14-5,216,215.98

Finding the Fourth Proportional to 9,290,509.50, 12,820,903.14 and 5,216,215.98

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Solution

The fourth proportional to 9,290,509.50, 12,820,903.14 and 5,216,215.98 is: 7,198,378.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,290,509.50 : 12,820,903.14 = 5,216,215.98 : x
  2. Step 2: Convert to fraction form
    9,290,509.50/12,820,903.14 = 5,216,215.98/x
  3. Step 3: Cross multiply
    9,290,509.50x = 12,820,903.14 × 5,216,215.98
  4. Step 4: Simplify right side
    9,290,509.50x = 66,876,599,836,900.19
  5. Step 5: Solve for x
    x = 66,876,599,836,900.19/9,290,509.50
  6. Step 6: Final answer
    x = 7,198,378.07

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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.