Home / 20,358,289.10-28,094,638.59-11,065,853.48

Finding the Fourth Proportional to 20,358,289.10, 28,094,638.59 and 11,065,853.48

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Solution

The fourth proportional to 20,358,289.10, 28,094,638.59 and 11,065,853.48 is: 15,270,986.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,358,289.10 : 28,094,638.59 = 11,065,853.48 : x
  2. Step 2: Convert to fraction form
    20,358,289.10/28,094,638.59 = 11,065,853.48/x
  3. Step 3: Cross multiply
    20,358,289.10x = 28,094,638.59 × 11,065,853.48
  4. Step 4: Simplify right side
    20,358,289.10x = 310,891,154,070,020.56
  5. Step 5: Solve for x
    x = 310,891,154,070,020.56/20,358,289.10
  6. Step 6: Final answer
    x = 15,270,986.30

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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.