Home / 28,027,579.12-38,678,005.44-15,636,935.26

Finding the Fourth Proportional to 28,027,579.12, 38,678,005.44 and 15,636,935.26

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Solution

The fourth proportional to 28,027,579.12, 38,678,005.44 and 15,636,935.26 is: 21,578,940.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,027,579.12 : 38,678,005.44 = 15,636,935.26 : x
  2. Step 2: Convert to fraction form
    28,027,579.12/38,678,005.44 = 15,636,935.26/x
  3. Step 3: Cross multiply
    28,027,579.12x = 38,678,005.44 × 15,636,935.26
  4. Step 4: Simplify right side
    28,027,579.12x = 604,805,467,051,207.75
  5. Step 5: Solve for x
    x = 604,805,467,051,207.75/28,027,579.12
  6. Step 6: Final answer
    x = 21,578,940.67

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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.