Home / 20,817,562.80-28,727,619.66-11,525,547

Finding the Fourth Proportional to 20,817,562.80, 28,727,619.66 and 11,525,547

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Solution

The fourth proportional to 20,817,562.80, 28,727,619.66 and 11,525,547 is: 15,904,913.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,817,562.80 : 28,727,619.66 = 11,525,547 : x
  2. Step 2: Convert to fraction form
    20,817,562.80/28,727,619.66 = 11,525,547/x
  3. Step 3: Cross multiply
    20,817,562.80x = 28,727,619.66 × 11,525,547
  4. Step 4: Simplify right side
    20,817,562.80x = 331,101,530,589,454
  5. Step 5: Solve for x
    x = 331,101,530,589,454/20,817,562.80
  6. Step 6: Final answer
    x = 15,904,913.26

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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.