Home / 13,398,571.76-18,490,038.14-7,517,394.06

Finding the Fourth Proportional to 13,398,571.76, 18,490,038.14 and 7,517,394.06

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Solution

The fourth proportional to 13,398,571.76, 18,490,038.14 and 7,517,394.06 is: 10,374,008.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,398,571.76 : 18,490,038.14 = 7,517,394.06 : x
  2. Step 2: Convert to fraction form
    13,398,571.76/18,490,038.14 = 7,517,394.06/x
  3. Step 3: Cross multiply
    13,398,571.76x = 18,490,038.14 × 7,517,394.06
  4. Step 4: Simplify right side
    13,398,571.76x = 138,996,902,845,222.48
  5. Step 5: Solve for x
    x = 138,996,902,845,222.48/13,398,571.76
  6. Step 6: Final answer
    x = 10,374,008.92

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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.