Home / 20,757,979.68-28,646,010.88-11,210,261

Finding the Fourth Proportional to 20,757,979.68, 28,646,010.88 and 11,210,261

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Solution

The fourth proportional to 20,757,979.68, 28,646,010.88 and 11,210,261 is: 15,470,159.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,757,979.68 : 28,646,010.88 = 11,210,261 : x
  2. Step 2: Convert to fraction form
    20,757,979.68/28,646,010.88 = 11,210,261/x
  3. Step 3: Cross multiply
    20,757,979.68x = 28,646,010.88 × 11,210,261
  4. Step 4: Simplify right side
    20,757,979.68x = 321,129,258,573,639.69
  5. Step 5: Solve for x
    x = 321,129,258,573,639.69/20,757,979.68
  6. Step 6: Final answer
    x = 15,470,159.60

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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.