Home / 28,409,022.67-39,204,434.37-15,356,281.76

Finding the Fourth Proportional to 28,409,022.67, 39,204,434.37 and 15,356,281.76

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Solution

The fourth proportional to 28,409,022.67, 39,204,434.37 and 15,356,281.76 is: 21,191,659.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,409,022.67 : 39,204,434.37 = 15,356,281.76 : x
  2. Step 2: Convert to fraction form
    28,409,022.67/39,204,434.37 = 15,356,281.76/x
  3. Step 3: Cross multiply
    28,409,022.67x = 39,204,434.37 × 15,356,281.76
  4. Step 4: Simplify right side
    28,409,022.67x = 602,034,340,427,148
  5. Step 5: Solve for x
    x = 602,034,340,427,148/28,409,022.67
  6. Step 6: Final answer
    x = 21,191,659.69

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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.