Home / 28,026,003.40-42,039,005.10-7,831,245.40

Finding the Fourth Proportional to 28,026,003.40, 42,039,005.10 and 7,831,245.40

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Solution

The fourth proportional to 28,026,003.40, 42,039,005.10 and 7,831,245.40 is: 11,746,868.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,026,003.40 : 42,039,005.10 = 7,831,245.40 : x
  2. Step 2: Convert to fraction form
    28,026,003.40/42,039,005.10 = 7,831,245.40/x
  3. Step 3: Cross multiply
    28,026,003.40x = 42,039,005.10 × 7,831,245.40
  4. Step 4: Simplify right side
    28,026,003.40x = 329,217,765,309,951.56
  5. Step 5: Solve for x
    x = 329,217,765,309,951.56/28,026,003.40
  6. Step 6: Final answer
    x = 11,746,868.10

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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.