Home / 20,973,769.40-31,460,654.10-6,601,242.80

Finding the Fourth Proportional to 20,973,769.40, 31,460,654.10 and 6,601,242.80

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Solution

The fourth proportional to 20,973,769.40, 31,460,654.10 and 6,601,242.80 is: 9,901,864.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,973,769.40 : 31,460,654.10 = 6,601,242.80 : x
  2. Step 2: Convert to fraction form
    20,973,769.40/31,460,654.10 = 6,601,242.80/x
  3. Step 3: Cross multiply
    20,973,769.40x = 31,460,654.10 × 6,601,242.80
  4. Step 4: Simplify right side
    20,973,769.40x = 207,679,416,360,915.47
  5. Step 5: Solve for x
    x = 207,679,416,360,915.47/20,973,769.40
  6. Step 6: Final answer
    x = 9,901,864.20

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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.