Home / 27,286,985.80-40,930,478.70-12,938,078.80

Finding the Fourth Proportional to 27,286,985.80, 40,930,478.70 and 12,938,078.80

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Solution

The fourth proportional to 27,286,985.80, 40,930,478.70 and 12,938,078.80 is: 19,407,118.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,286,985.80 : 40,930,478.70 = 12,938,078.80 : x
  2. Step 2: Convert to fraction form
    27,286,985.80/40,930,478.70 = 12,938,078.80/x
  3. Step 3: Cross multiply
    27,286,985.80x = 40,930,478.70 × 12,938,078.80
  4. Step 4: Simplify right side
    27,286,985.80x = 529,561,758,742,321.62
  5. Step 5: Solve for x
    x = 529,561,758,742,321.62/27,286,985.80
  6. Step 6: Final answer
    x = 19,407,118.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.