Home / 13,428,129.60-18,530,812.53-7,316,558.10

Finding the Fourth Proportional to 13,428,129.60, 18,530,812.53 and 7,316,558.10

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Solution

The fourth proportional to 13,428,129.60, 18,530,812.53 and 7,316,558.10 is: 10,096,846.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,428,129.60 : 18,530,812.53 = 7,316,558.10 : x
  2. Step 2: Convert to fraction form
    13,428,129.60/18,530,812.53 = 7,316,558.10/x
  3. Step 3: Cross multiply
    13,428,129.60x = 18,530,812.53 × 7,316,558.10
  4. Step 4: Simplify right side
    13,428,129.60x = 135,581,766,515,953
  5. Step 5: Solve for x
    x = 135,581,766,515,953/13,428,129.60
  6. Step 6: Final answer
    x = 10,096,846.74

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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.