Home / 19,859,989.70-29,789,984.55-12,301,717.70

Finding the Fourth Proportional to 19,859,989.70, 29,789,984.55 and 12,301,717.70

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Solution

The fourth proportional to 19,859,989.70, 29,789,984.55 and 12,301,717.70 is: 18,452,576.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,859,989.70 : 29,789,984.55 = 12,301,717.70 : x
  2. Step 2: Convert to fraction form
    19,859,989.70/29,789,984.55 = 12,301,717.70/x
  3. Step 3: Cross multiply
    19,859,989.70x = 29,789,984.55 × 12,301,717.70
  4. Step 4: Simplify right side
    19,859,989.70x = 366,467,980,221,461.50
  5. Step 5: Solve for x
    x = 366,467,980,221,461.50/19,859,989.70
  6. Step 6: Final answer
    x = 18,452,576.55

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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.