Home / 20,761,394.52-28,634,801.16-12,492,836.92

Finding the Fourth Proportional to 20,761,394.52, 28,634,801.16 and 12,492,836.92

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Solution

The fourth proportional to 20,761,394.52, 28,634,801.16 and 12,492,836.92 is: 17,230,533.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,761,394.52 : 28,634,801.16 = 12,492,836.92 : x
  2. Step 2: Convert to fraction form
    20,761,394.52/28,634,801.16 = 12,492,836.92/x
  3. Step 3: Cross multiply
    20,761,394.52x = 28,634,801.16 × 12,492,836.92
  4. Step 4: Simplify right side
    20,761,394.52x = 357,729,901,128,506.81
  5. Step 5: Solve for x
    x = 357,729,901,128,506.81/20,761,394.52
  6. Step 6: Final answer
    x = 17,230,533.37

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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.