Home / 28,731,208.65-39,649,910.58-15,679,310.28

Finding the Fourth Proportional to 28,731,208.65, 39,649,910.58 and 15,679,310.28

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Solution

The fourth proportional to 28,731,208.65, 39,649,910.58 and 15,679,310.28 is: 21,637,908.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,731,208.65 : 39,649,910.58 = 15,679,310.28 : x
  2. Step 2: Convert to fraction form
    28,731,208.65/39,649,910.58 = 15,679,310.28/x
  3. Step 3: Cross multiply
    28,731,208.65x = 39,649,910.58 × 15,679,310.28
  4. Step 4: Simplify right side
    28,731,208.65x = 621,683,250,558,074.75
  5. Step 5: Solve for x
    x = 621,683,250,558,074.75/28,731,208.65
  6. Step 6: Final answer
    x = 21,637,908.04

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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.