Home / 28,952,358.80-39,963,211.89-18,639,073.69

Finding the Fourth Proportional to 28,952,358.80, 39,963,211.89 and 18,639,073.69

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Solution

The fourth proportional to 28,952,358.80, 39,963,211.89 and 18,639,073.69 is: 25,727,687.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,952,358.80 : 39,963,211.89 = 18,639,073.69 : x
  2. Step 2: Convert to fraction form
    28,952,358.80/39,963,211.89 = 18,639,073.69/x
  3. Step 3: Cross multiply
    28,952,358.80x = 39,963,211.89 × 18,639,073.69
  4. Step 4: Simplify right side
    28,952,358.80x = 744,877,251,136,989.50
  5. Step 5: Solve for x
    x = 744,877,251,136,989.50/28,952,358.80
  6. Step 6: Final answer
    x = 25,727,687.90

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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.