Home / 19,013,797.43-28,520,651.79-12,489,688.06

Finding the Fourth Proportional to 19,013,797.43, 28,520,651.79 and 12,489,688.06

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Solution

The fourth proportional to 19,013,797.43, 28,520,651.79 and 12,489,688.06 is: 18,734,502.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,013,797.43 : 28,520,651.79 = 12,489,688.06 : x
  2. Step 2: Convert to fraction form
    19,013,797.43/28,520,651.79 = 12,489,688.06/x
  3. Step 3: Cross multiply
    19,013,797.43x = 28,520,651.79 × 12,489,688.06
  4. Step 4: Simplify right side
    19,013,797.43x = 356,214,044,196,282.25
  5. Step 5: Solve for x
    x = 356,214,044,196,282.25/19,013,797.43
  6. Step 6: Final answer
    x = 18,734,502.96

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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.