Home / 20,563,313.82-28,376,752.90-11,270,681.56

Finding the Fourth Proportional to 20,563,313.82, 28,376,752.90 and 11,270,681.56

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Solution

The fourth proportional to 20,563,313.82, 28,376,752.90 and 11,270,681.56 is: 15,553,200.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,563,313.82 : 28,376,752.90 = 11,270,681.56 : x
  2. Step 2: Convert to fraction form
    20,563,313.82/28,376,752.90 = 11,270,681.56/x
  3. Step 3: Cross multiply
    20,563,313.82x = 28,376,752.90 × 11,270,681.56
  4. Step 4: Simplify right side
    20,563,313.82x = 319,825,345,642,706.50
  5. Step 5: Solve for x
    x = 319,825,345,642,706.50/20,563,313.82
  6. Step 6: Final answer
    x = 15,553,200.64

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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.