Home / 12,165,881.76-16,807,150.95-7,989,475.17

Finding the Fourth Proportional to 12,165,881.76, 16,807,150.95 and 7,989,475.17

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Solution

The fourth proportional to 12,165,881.76, 16,807,150.95 and 7,989,475.17 is: 11,037,450.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,165,881.76 : 16,807,150.95 = 7,989,475.17 : x
  2. Step 2: Convert to fraction form
    12,165,881.76/16,807,150.95 = 7,989,475.17/x
  3. Step 3: Cross multiply
    12,165,881.76x = 16,807,150.95 × 7,989,475.17
  4. Step 4: Simplify right side
    12,165,881.76x = 134,280,315,193,466.91
  5. Step 5: Solve for x
    x = 134,280,315,193,466.91/12,165,881.76
  6. Step 6: Final answer
    x = 11,037,450.29

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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.