Home / 20,580,308.19-28,402,569.69-11,415,903.39

Finding the Fourth Proportional to 20,580,308.19, 28,402,569.69 and 11,415,903.39

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Solution

The fourth proportional to 20,580,308.19, 28,402,569.69 and 11,415,903.39 is: 15,754,914.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,580,308.19 : 28,402,569.69 = 11,415,903.39 : x
  2. Step 2: Convert to fraction form
    20,580,308.19/28,402,569.69 = 11,415,903.39/x
  3. Step 3: Cross multiply
    20,580,308.19x = 28,402,569.69 × 11,415,903.39
  4. Step 4: Simplify right side
    20,580,308.19x = 324,240,991,608,782.31
  5. Step 5: Solve for x
    x = 324,240,991,608,782.31/20,580,308.19
  6. Step 6: Final answer
    x = 15,754,914.29

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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.