Home / 20,551,445.76-30,831,497.28-7,771,667.52

Finding the Fourth Proportional to 20,551,445.76, 30,831,497.28 and 7,771,667.52

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Solution

The fourth proportional to 20,551,445.76, 30,831,497.28 and 7,771,667.52 is: 11,659,138.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,551,445.76 : 30,831,497.28 = 7,771,667.52 : x
  2. Step 2: Convert to fraction form
    20,551,445.76/30,831,497.28 = 7,771,667.52/x
  3. Step 3: Cross multiply
    20,551,445.76x = 30,831,497.28 × 7,771,667.52
  4. Step 4: Simplify right side
    20,551,445.76x = 239,612,146,003,944.34
  5. Step 5: Solve for x
    x = 239,612,146,003,944.34/20,551,445.76
  6. Step 6: Final answer
    x = 11,659,138.18

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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.