Home / 20,506,919.03-28,298,988.32-11,339,248.31

Finding the Fourth Proportional to 20,506,919.03, 28,298,988.32 and 11,339,248.31

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Solution

The fourth proportional to 20,506,919.03, 28,298,988.32 and 11,339,248.31 is: 15,647,853.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,506,919.03 : 28,298,988.32 = 11,339,248.31 : x
  2. Step 2: Convert to fraction form
    20,506,919.03/28,298,988.32 = 11,339,248.31/x
  3. Step 3: Cross multiply
    20,506,919.03x = 28,298,988.32 × 11,339,248.31
  4. Step 4: Simplify right side
    20,506,919.03x = 320,889,255,482,269.75
  5. Step 5: Solve for x
    x = 320,889,255,482,269.75/20,506,919.03
  6. Step 6: Final answer
    x = 15,647,853.05

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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.