Home / 279,985,270.60-391,072,386.20-279,985,270.60

Finding the Fourth Proportional to 279,985,270.60, 391,072,386.20 and 279,985,270.60

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Solution

The fourth proportional to 279,985,270.60, 391,072,386.20 and 279,985,270.60 is: 391,072,386.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,985,270.60 : 391,072,386.20 = 279,985,270.60 : x
  2. Step 2: Convert to fraction form
    279,985,270.60/391,072,386.20 = 279,985,270.60/x
  3. Step 3: Cross multiply
    279,985,270.60x = 391,072,386.20 × 279,985,270.60
  4. Step 4: Simplify right side
    279,985,270.60x = 109,494,507,874,394,704
  5. Step 5: Solve for x
    x = 109,494,507,874,394,704/279,985,270.60
  6. Step 6: Final answer
    x = 391,072,386.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.