Home / 279,598,425.88-419,397,417.54-75,126,501.40

Finding the Fourth Proportional to 279,598,425.88, 419,397,417.54 and 75,126,501.40

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Solution

The fourth proportional to 279,598,425.88, 419,397,417.54 and 75,126,501.40 is: 112,689,692.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,598,425.88 : 419,397,417.54 = 75,126,501.40 : x
  2. Step 2: Convert to fraction form
    279,598,425.88/419,397,417.54 = 75,126,501.40/x
  3. Step 3: Cross multiply
    279,598,425.88x = 419,397,417.54 × 75,126,501.40
  4. Step 4: Simplify right side
    279,598,425.88x = 31,507,860,675,975,200
  5. Step 5: Solve for x
    x = 31,507,860,675,975,200/279,598,425.88
  6. Step 6: Final answer
    x = 112,689,692.64

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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.