Home / 13,602,515.13-18,771,105.78-7,407,438.30

Finding the Fourth Proportional to 13,602,515.13, 18,771,105.78 and 7,407,438.30

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Solution

The fourth proportional to 13,602,515.13, 18,771,105.78 and 7,407,438.30 is: 10,222,066.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,602,515.13 : 18,771,105.78 = 7,407,438.30 : x
  2. Step 2: Convert to fraction form
    13,602,515.13/18,771,105.78 = 7,407,438.30/x
  3. Step 3: Cross multiply
    13,602,515.13x = 18,771,105.78 × 7,407,438.30
  4. Step 4: Simplify right side
    13,602,515.13x = 139,045,807,888,123.38
  5. Step 5: Solve for x
    x = 139,045,807,888,123.38/13,602,515.13
  6. Step 6: Final answer
    x = 10,222,066.03

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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.