Home / 28,715,744.48-39,627,852.08-15,663,283.76

Finding the Fourth Proportional to 28,715,744.48, 39,627,852.08 and 15,663,283.76

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Solution

The fourth proportional to 28,715,744.48, 39,627,852.08 and 15,663,283.76 is: 21,615,399.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,715,744.48 : 39,627,852.08 = 15,663,283.76 : x
  2. Step 2: Convert to fraction form
    28,715,744.48/39,627,852.08 = 15,663,283.76/x
  3. Step 3: Cross multiply
    28,715,744.48x = 39,627,852.08 × 15,663,283.76
  4. Step 4: Simplify right side
    28,715,744.48x = 620,702,291,928,346.12
  5. Step 5: Solve for x
    x = 620,702,291,928,346.12/28,715,744.48
  6. Step 6: Final answer
    x = 21,615,399.61

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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.