Home / 28,678,848.60-39,576,310.74-15,626,215.56

Finding the Fourth Proportional to 28,678,848.60, 39,576,310.74 and 15,626,215.56

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Solution

The fourth proportional to 28,678,848.60, 39,576,310.74 and 15,626,215.56 is: 21,563,904.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,678,848.60 : 39,576,310.74 = 15,626,215.56 : x
  2. Step 2: Convert to fraction form
    28,678,848.60/39,576,310.74 = 15,626,215.56/x
  3. Step 3: Cross multiply
    28,678,848.60x = 39,576,310.74 × 15,626,215.56
  4. Step 4: Simplify right side
    28,678,848.60x = 618,427,962,692,783.12
  5. Step 5: Solve for x
    x = 618,427,962,692,783.12/28,678,848.60
  6. Step 6: Final answer
    x = 21,563,904.86

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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.