Home / 13,339,284.06-18,408,421-7,832,780.68

Finding the Fourth Proportional to 13,339,284.06, 18,408,421 and 7,832,780.68

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Solution

The fourth proportional to 13,339,284.06, 18,408,421 and 7,832,780.68 is: 10,809,360.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,339,284.06 : 18,408,421 = 7,832,780.68 : x
  2. Step 2: Convert to fraction form
    13,339,284.06/18,408,421 = 7,832,780.68/x
  3. Step 3: Cross multiply
    13,339,284.06x = 18,408,421 × 7,832,780.68
  4. Step 4: Simplify right side
    13,339,284.06x = 144,189,124,358,106.28
  5. Step 5: Solve for x
    x = 144,189,124,358,106.28/13,339,284.06
  6. Step 6: Final answer
    x = 10,809,360.06

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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.