Home / 13,129,316.51-18,117,719.69-7,328,472.21

Finding the Fourth Proportional to 13,129,316.51, 18,117,719.69 and 7,328,472.21

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Solution

The fourth proportional to 13,129,316.51, 18,117,719.69 and 7,328,472.21 is: 10,112,880.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129,316.51 : 18,117,719.69 = 7,328,472.21 : x
  2. Step 2: Convert to fraction form
    13,129,316.51/18,117,719.69 = 7,328,472.21/x
  3. Step 3: Cross multiply
    13,129,316.51x = 18,117,719.69 × 7,328,472.21
  4. Step 4: Simplify right side
    13,129,316.51x = 132,775,205,220,092.44
  5. Step 5: Solve for x
    x = 132,775,205,220,092.44/13,129,316.51
  6. Step 6: Final answer
    x = 10,112,880.22

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.