Home / 20,016,685.84-30,013,653.48-7,879,576.72

Finding the Fourth Proportional to 20,016,685.84, 30,013,653.48 and 7,879,576.72

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Solution

The fourth proportional to 20,016,685.84, 30,013,653.48 and 7,879,576.72 is: 11,814,887.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,016,685.84 : 30,013,653.48 = 7,879,576.72 : x
  2. Step 2: Convert to fraction form
    20,016,685.84/30,013,653.48 = 7,879,576.72/x
  3. Step 3: Cross multiply
    20,016,685.84x = 30,013,653.48 × 7,879,576.72
  4. Step 4: Simplify right side
    20,016,685.84x = 236,494,885,243,154.97
  5. Step 5: Solve for x
    x = 236,494,885,243,154.97/20,016,685.84
  6. Step 6: Final answer
    x = 11,814,887.20

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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.