Home / 8,408,601.90-12,628,108.17-7,768,215.90

Finding the Fourth Proportional to 8,408,601.90, 12,628,108.17 and 7,768,215.90

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Solution

The fourth proportional to 8,408,601.90, 12,628,108.17 and 7,768,215.90 is: 11,666,371.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408,601.90 : 12,628,108.17 = 7,768,215.90 : x
  2. Step 2: Convert to fraction form
    8,408,601.90/12,628,108.17 = 7,768,215.90/x
  3. Step 3: Cross multiply
    8,408,601.90x = 12,628,108.17 × 7,768,215.90
  4. Step 4: Simplify right side
    8,408,601.90x = 98,097,870,673,113.91
  5. Step 5: Solve for x
    x = 98,097,870,673,113.91/8,408,601.90
  6. Step 6: Final answer
    x = 11,666,371.16

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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.