Home / 28,092,896.58-38,771,344.53-15,870,540.90

Finding the Fourth Proportional to 28,092,896.58, 38,771,344.53 and 15,870,540.90

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Solution

The fourth proportional to 28,092,896.58, 38,771,344.53 and 15,870,540.90 is: 21,903,124.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,092,896.58 : 38,771,344.53 = 15,870,540.90 : x
  2. Step 2: Convert to fraction form
    28,092,896.58/38,771,344.53 = 15,870,540.90/x
  3. Step 3: Cross multiply
    28,092,896.58x = 38,771,344.53 × 15,870,540.90
  4. Step 4: Simplify right side
    28,092,896.58x = 615,322,209,111,356.25
  5. Step 5: Solve for x
    x = 615,322,209,111,356.25/28,092,896.58
  6. Step 6: Final answer
    x = 21,903,124.42

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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.