Home / 13,390,348.71-18,461,574.15-8,672,408.13

Finding the Fourth Proportional to 13,390,348.71, 18,461,574.15 and 8,672,408.13

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Solution

The fourth proportional to 13,390,348.71, 18,461,574.15 and 8,672,408.13 is: 11,956,843.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390,348.71 : 18,461,574.15 = 8,672,408.13 : x
  2. Step 2: Convert to fraction form
    13,390,348.71/18,461,574.15 = 8,672,408.13/x
  3. Step 3: Cross multiply
    13,390,348.71x = 18,461,574.15 × 8,672,408.13
  4. Step 4: Simplify right side
    13,390,348.71x = 160,106,305,751,057.84
  5. Step 5: Solve for x
    x = 160,106,305,751,057.84/13,390,348.71
  6. Step 6: Final answer
    x = 11,956,843.64

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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.