Home / 12,915,208.48-17,822,329.32-7,113,865.36

Finding the Fourth Proportional to 12,915,208.48, 17,822,329.32 and 7,113,865.36

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Solution

The fourth proportional to 12,915,208.48, 17,822,329.32 and 7,113,865.36 is: 9,816,771.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,915,208.48 : 17,822,329.32 = 7,113,865.36 : x
  2. Step 2: Convert to fraction form
    12,915,208.48/17,822,329.32 = 7,113,865.36/x
  3. Step 3: Cross multiply
    12,915,208.48x = 17,822,329.32 × 7,113,865.36
  4. Step 4: Simplify right side
    12,915,208.48x = 126,785,651,184,060.36
  5. Step 5: Solve for x
    x = 126,785,651,184,060.36/12,915,208.48
  6. Step 6: Final answer
    x = 9,816,771.55

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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.