Home / 13,480,971.10-20,221,456.65-12,790,097.80

Finding the Fourth Proportional to 13,480,971.10, 20,221,456.65 and 12,790,097.80

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Solution

The fourth proportional to 13,480,971.10, 20,221,456.65 and 12,790,097.80 is: 19,185,146.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480,971.10 : 20,221,456.65 = 12,790,097.80 : x
  2. Step 2: Convert to fraction form
    13,480,971.10/20,221,456.65 = 12,790,097.80/x
  3. Step 3: Cross multiply
    13,480,971.10x = 20,221,456.65 × 12,790,097.80
  4. Step 4: Simplify right side
    13,480,971.10x = 258,634,408,211,960.38
  5. Step 5: Solve for x
    x = 258,634,408,211,960.38/13,480,971.10
  6. Step 6: Final answer
    x = 19,185,146.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.