Home / 15,376,100.10-21,219,056.28-8,407,227.36

Finding the Fourth Proportional to 15,376,100.10, 21,219,056.28 and 8,407,227.36

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Solution

The fourth proportional to 15,376,100.10, 21,219,056.28 and 8,407,227.36 is: 11,601,994.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,376,100.10 : 21,219,056.28 = 8,407,227.36 : x
  2. Step 2: Convert to fraction form
    15,376,100.10/21,219,056.28 = 8,407,227.36/x
  3. Step 3: Cross multiply
    15,376,100.10x = 21,219,056.28 × 8,407,227.36
  4. Step 4: Simplify right side
    15,376,100.10x = 178,393,430,510,595.81
  5. Step 5: Solve for x
    x = 178,393,430,510,595.81/15,376,100.10
  6. Step 6: Final answer
    x = 11,601,994.61

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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.