Home / 20,698,769.70-28,564,491.10-11,406,673.17

Finding the Fourth Proportional to 20,698,769.70, 28,564,491.10 and 11,406,673.17

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Solution

The fourth proportional to 20,698,769.70, 28,564,491.10 and 11,406,673.17 is: 15,741,313.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698,769.70 : 28,564,491.10 = 11,406,673.17 : x
  2. Step 2: Convert to fraction form
    20,698,769.70/28,564,491.10 = 11,406,673.17/x
  3. Step 3: Cross multiply
    20,698,769.70x = 28,564,491.10 × 11,406,673.17
  4. Step 4: Simplify right side
    20,698,769.70x = 325,825,814,245,073.81
  5. Step 5: Solve for x
    x = 325,825,814,245,073.81/20,698,769.70
  6. Step 6: Final answer
    x = 15,741,313.08

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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.