Home / 13,128,072.71-19,691,397.27-4,030,172.15

Finding the Fourth Proportional to 13,128,072.71, 19,691,397.27 and 4,030,172.15

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Solution

The fourth proportional to 13,128,072.71, 19,691,397.27 and 4,030,172.15 is: 6,045,039.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,128,072.71 : 19,691,397.27 = 4,030,172.15 : x
  2. Step 2: Convert to fraction form
    13,128,072.71/19,691,397.27 = 4,030,172.15/x
  3. Step 3: Cross multiply
    13,128,072.71x = 19,691,397.27 × 4,030,172.15
  4. Step 4: Simplify right side
    13,128,072.71x = 79,359,720,773,683.05
  5. Step 5: Solve for x
    x = 79,359,720,773,683.05/13,128,072.71
  6. Step 6: Final answer
    x = 6,045,039.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.