Home / 13,150,649.46-18,148,456.73-7,349,431.03

Finding the Fourth Proportional to 13,150,649.46, 18,148,456.73 and 7,349,431.03

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Solution

The fourth proportional to 13,150,649.46, 18,148,456.73 and 7,349,431.03 is: 10,142,528.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,150,649.46 : 18,148,456.73 = 7,349,431.03 : x
  2. Step 2: Convert to fraction form
    13,150,649.46/18,148,456.73 = 7,349,431.03/x
  3. Step 3: Cross multiply
    13,150,649.46x = 18,148,456.73 × 7,349,431.03
  4. Step 4: Simplify right side
    13,150,649.46x = 133,380,831,038,074.34
  5. Step 5: Solve for x
    x = 133,380,831,038,074.34/13,150,649.46
  6. Step 6: Final answer
    x = 10,142,528.05

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1.5x scale

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.