Home / 13,800,130.28-19,044,254.70-7,919,296.20

Finding the Fourth Proportional to 13,800,130.28, 19,044,254.70 and 7,919,296.20

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Solution

The fourth proportional to 13,800,130.28, 19,044,254.70 and 7,919,296.20 is: 10,928,671.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,800,130.28 : 19,044,254.70 = 7,919,296.20 : x
  2. Step 2: Convert to fraction form
    13,800,130.28/19,044,254.70 = 7,919,296.20/x
  3. Step 3: Cross multiply
    13,800,130.28x = 19,044,254.70 × 7,919,296.20
  4. Step 4: Simplify right side
    13,800,130.28x = 150,817,093,837,945.66
  5. Step 5: Solve for x
    x = 150,817,093,837,945.66/13,800,130.28
  6. Step 6: Final answer
    x = 10,928,671.74

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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.