Home / 15,686,444.46-21,647,818.44-8,717,415.78

Finding the Fourth Proportional to 15,686,444.46, 21,647,818.44 and 8,717,415.78

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Solution

The fourth proportional to 15,686,444.46, 21,647,818.44 and 8,717,415.78 is: 12,030,325.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,686,444.46 : 21,647,818.44 = 8,717,415.78 : x
  2. Step 2: Convert to fraction form
    15,686,444.46/21,647,818.44 = 8,717,415.78/x
  3. Step 3: Cross multiply
    15,686,444.46x = 21,647,818.44 × 8,717,415.78
  4. Step 4: Simplify right side
    15,686,444.46x = 188,713,034,071,430.97
  5. Step 5: Solve for x
    x = 188,713,034,071,430.97/15,686,444.46
  6. Step 6: Final answer
    x = 12,030,325.58

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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.