Home / 28,921,021.65-39,911,005.55-16,531,381.10

Finding the Fourth Proportional to 28,921,021.65, 39,911,005.55 and 16,531,381.10

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Solution

The fourth proportional to 28,921,021.65, 39,911,005.55 and 16,531,381.10 is: 22,813,303.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,921,021.65 : 39,911,005.55 = 16,531,381.10 : x
  2. Step 2: Convert to fraction form
    28,921,021.65/39,911,005.55 = 16,531,381.10/x
  3. Step 3: Cross multiply
    28,921,021.65x = 39,911,005.55 × 16,531,381.10
  4. Step 4: Simplify right side
    28,921,021.65x = 659,784,042,639,727.88
  5. Step 5: Solve for x
    x = 659,784,042,639,727.88/28,921,021.65
  6. Step 6: Final answer
    x = 22,813,303.44

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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.