Home / 12,831,215.76-17,707,077.36-7,030,217.28

Finding the Fourth Proportional to 12,831,215.76, 17,707,077.36 and 7,030,217.28

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Solution

The fourth proportional to 12,831,215.76, 17,707,077.36 and 7,030,217.28 is: 9,701,699.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,831,215.76 : 17,707,077.36 = 7,030,217.28 : x
  2. Step 2: Convert to fraction form
    12,831,215.76/17,707,077.36 = 7,030,217.28/x
  3. Step 3: Cross multiply
    12,831,215.76x = 17,707,077.36 × 7,030,217.28
  4. Step 4: Simplify right side
    12,831,215.76x = 124,484,601,234,568.78
  5. Step 5: Solve for x
    x = 124,484,601,234,568.78/12,831,215.76
  6. Step 6: Final answer
    x = 9,701,699.63

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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.