Home / 20,386,476.49-28,133,342.19-11,219,119.24

Finding the Fourth Proportional to 20,386,476.49, 28,133,342.19 and 11,219,119.24

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Solution

The fourth proportional to 20,386,476.49, 28,133,342.19 and 11,219,119.24 is: 15,482,387.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,386,476.49 : 28,133,342.19 = 11,219,119.24 : x
  2. Step 2: Convert to fraction form
    20,386,476.49/28,133,342.19 = 11,219,119.24/x
  3. Step 3: Cross multiply
    20,386,476.49x = 28,133,342.19 × 11,219,119.24
  4. Step 4: Simplify right side
    20,386,476.49x = 315,631,320,649,332.75
  5. Step 5: Solve for x
    x = 315,631,320,649,332.75/20,386,476.49
  6. Step 6: Final answer
    x = 15,482,387.10

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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.