Home / 13,428,187.64-18,530,901.60-7,316,616.16

Finding the Fourth Proportional to 13,428,187.64, 18,530,901.60 and 7,316,616.16

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Solution

The fourth proportional to 13,428,187.64, 18,530,901.60 and 7,316,616.16 is: 10,096,931.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,428,187.64 : 18,530,901.60 = 7,316,616.16 : x
  2. Step 2: Convert to fraction form
    13,428,187.64/18,530,901.60 = 7,316,616.16/x
  3. Step 3: Cross multiply
    13,428,187.64x = 18,530,901.60 × 7,316,616.16
  4. Step 4: Simplify right side
    13,428,187.64x = 135,583,494,105,929.88
  5. Step 5: Solve for x
    x = 135,583,494,105,929.88/13,428,187.64
  6. Step 6: Final answer
    x = 10,096,931.75

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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.