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Finding the Fourth Proportional to 9,939,247.80, 14,908,871.70 and 9,771,286.20

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Solution

The fourth proportional to 9,939,247.80, 14,908,871.70 and 9,771,286.20 is: 14,656,929.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,939,247.80 : 14,908,871.70 = 9,771,286.20 : x
  2. Step 2: Convert to fraction form
    9,939,247.80/14,908,871.70 = 9,771,286.20/x
  3. Step 3: Cross multiply
    9,939,247.80x = 14,908,871.70 × 9,771,286.20
  4. Step 4: Simplify right side
    9,939,247.80x = 145,678,852,299,780.53
  5. Step 5: Solve for x
    x = 145,678,852,299,780.53/9,939,247.80
  6. Step 6: Final answer
    x = 14,656,929.30

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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.