Home / 13,428,178.14-18,530,888.50-7,316,606.64

Finding the Fourth Proportional to 13,428,178.14, 18,530,888.50 and 7,316,606.64

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Solution

The fourth proportional to 13,428,178.14, 18,530,888.50 and 7,316,606.64 is: 10,096,918.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,428,178.14 : 18,530,888.50 = 7,316,606.64 : x
  2. Step 2: Convert to fraction form
    13,428,178.14/18,530,888.50 = 7,316,606.64/x
  3. Step 3: Cross multiply
    13,428,178.14x = 18,530,888.50 × 7,316,606.64
  4. Step 4: Simplify right side
    13,428,178.14x = 135,583,221,844,199.64
  5. Step 5: Solve for x
    x = 135,583,221,844,199.64/13,428,178.14
  6. Step 6: Final answer
    x = 10,096,918.62

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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.