Home / 279,596,000.80-419,394,001.20-157,151,994.40

Finding the Fourth Proportional to 279,596,000.80, 419,394,001.20 and 157,151,994.40

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Solution

The fourth proportional to 279,596,000.80, 419,394,001.20 and 157,151,994.40 is: 235,727,991.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,596,000.80 : 419,394,001.20 = 157,151,994.40 : x
  2. Step 2: Convert to fraction form
    279,596,000.80/419,394,001.20 = 157,151,994.40/x
  3. Step 3: Cross multiply
    279,596,000.80x = 419,394,001.20 × 157,151,994.40
  4. Step 4: Simplify right side
    279,596,000.80x = 65,908,603,727,975,992
  5. Step 5: Solve for x
    x = 65,908,603,727,975,992/279,596,000.80
  6. Step 6: Final answer
    x = 235,727,991.60

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1.5x scale

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.