Home / 20,553,133.74-28,363,323.79-11,261,056.39

Finding the Fourth Proportional to 20,553,133.74, 28,363,323.79 and 11,261,056.39

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Solution

The fourth proportional to 20,553,133.74, 28,363,323.79 and 11,261,056.39 is: 15,540,257.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,553,133.74 : 28,363,323.79 = 11,261,056.39 : x
  2. Step 2: Convert to fraction form
    20,553,133.74/28,363,323.79 = 11,261,056.39/x
  3. Step 3: Cross multiply
    20,553,133.74x = 28,363,323.79 × 11,261,056.39
  4. Step 4: Simplify right side
    20,553,133.74x = 319,400,988,550,186.50
  5. Step 5: Solve for x
    x = 319,400,988,550,186.50/20,553,133.74
  6. Step 6: Final answer
    x = 15,540,257.39

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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.