Home / 13,150,646.96-18,148,453.28-7,349,428.53

Finding the Fourth Proportional to 13,150,646.96, 18,148,453.28 and 7,349,428.53

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Solution

The fourth proportional to 13,150,646.96, 18,148,453.28 and 7,349,428.53 is: 10,142,524.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,150,646.96 : 18,148,453.28 = 7,349,428.53 : x
  2. Step 2: Convert to fraction form
    13,150,646.96/18,148,453.28 = 7,349,428.53/x
  3. Step 3: Cross multiply
    13,150,646.96x = 18,148,453.28 × 7,349,428.53
  4. Step 4: Simplify right side
    13,150,646.96x = 133,380,760,274,656.92
  5. Step 5: Solve for x
    x = 133,380,760,274,656.92/13,150,646.96
  6. Step 6: Final answer
    x = 10,142,524.60

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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.