Home / 20,407,533.76-28,162,396.93-11,240,176.51

Finding the Fourth Proportional to 20,407,533.76, 28,162,396.93 and 11,240,176.51

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Solution

The fourth proportional to 20,407,533.76, 28,162,396.93 and 11,240,176.51 is: 15,511,443.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,407,533.76 : 28,162,396.93 = 11,240,176.51 : x
  2. Step 2: Convert to fraction form
    20,407,533.76/28,162,396.93 = 11,240,176.51/x
  3. Step 3: Cross multiply
    20,407,533.76x = 28,162,396.93 × 11,240,176.51
  4. Step 4: Simplify right side
    20,407,533.76x = 316,550,312,437,882.12
  5. Step 5: Solve for x
    x = 316,550,312,437,882.12/20,407,533.76
  6. Step 6: Final answer
    x = 15,511,443.77

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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.