Home / 38,481,308.76-53,103,549.60-20,840,068.47

Finding the Fourth Proportional to 38,481,308.76, 53,103,549.60 and 20,840,068.47

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Solution

The fourth proportional to 38,481,308.76, 53,103,549.60 and 20,840,068.47 is: 28,758,938.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,481,308.76 : 53,103,549.60 = 20,840,068.47 : x
  2. Step 2: Convert to fraction form
    38,481,308.76/53,103,549.60 = 20,840,068.47/x
  3. Step 3: Cross multiply
    38,481,308.76x = 53,103,549.60 × 20,840,068.47
  4. Step 4: Simplify right side
    38,481,308.76x = 1,106,681,609,664,041.12
  5. Step 5: Solve for x
    x = 1,106,681,609,664,041.12/38,481,308.76
  6. Step 6: Final answer
    x = 28,758,938.96

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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.