Home / 13,398,571.19-18,490,037.36-7,517,393.50

Finding the Fourth Proportional to 13,398,571.19, 18,490,037.36 and 7,517,393.50

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Solution

The fourth proportional to 13,398,571.19, 18,490,037.36 and 7,517,393.50 is: 10,374,008.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,398,571.19 : 18,490,037.36 = 7,517,393.50 : x
  2. Step 2: Convert to fraction form
    13,398,571.19/18,490,037.36 = 7,517,393.50/x
  3. Step 3: Cross multiply
    13,398,571.19x = 18,490,037.36 × 7,517,393.50
  4. Step 4: Simplify right side
    13,398,571.19x = 138,996,886,664,821.16
  5. Step 5: Solve for x
    x = 138,996,886,664,821.16/13,398,571.19
  6. Step 6: Final answer
    x = 10,374,008.15

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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.