Home / 10,502,431.40-15,722,154.30-9,879,573.80

Finding the Fourth Proportional to 10,502,431.40, 15,722,154.30 and 9,879,573.80

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Solution

The fourth proportional to 10,502,431.40, 15,722,154.30 and 9,879,573.80 is: 14,789,735.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,502,431.40 : 15,722,154.30 = 9,879,573.80 : x
  2. Step 2: Convert to fraction form
    10,502,431.40/15,722,154.30 = 9,879,573.80/x
  3. Step 3: Cross multiply
    10,502,431.40x = 15,722,154.30 × 9,879,573.80
  4. Step 4: Simplify right side
    10,502,431.40x = 155,328,183,701,837.34
  5. Step 5: Solve for x
    x = 155,328,183,701,837.34/10,502,431.40
  6. Step 6: Final answer
    x = 14,789,735.61

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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.