Home / 28,903,358.40-39,882,968.72-15,847,181.68

Finding the Fourth Proportional to 28,903,358.40, 39,882,968.72 and 15,847,181.68

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Solution

The fourth proportional to 28,903,358.40, 39,882,968.72 and 15,847,181.68 is: 21,867,100.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,903,358.40 : 39,882,968.72 = 15,847,181.68 : x
  2. Step 2: Convert to fraction form
    28,903,358.40/39,882,968.72 = 15,847,181.68/x
  3. Step 3: Cross multiply
    28,903,358.40x = 39,882,968.72 × 15,847,181.68
  4. Step 4: Simplify right side
    28,903,358.40x = 632,032,651,243,597
  5. Step 5: Solve for x
    x = 632,032,651,243,597/28,903,358.40
  6. Step 6: Final answer
    x = 21,867,100.79

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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.