Home / 711,309,779.60-1,067,561,866.20-323,729,056.40

Finding the Fourth Proportional to 711,309,779.60, 1,067,561,866.20 and 323,729,056.40

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Solution

The fourth proportional to 711,309,779.60, 1,067,561,866.20 and 323,729,056.40 is: 485,865,378.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,309,779.60 : 1,067,561,866.20 = 323,729,056.40 : x
  2. Step 2: Convert to fraction form
    711,309,779.60/1,067,561,866.20 = 323,729,056.40/x
  3. Step 3: Cross multiply
    711,309,779.60x = 1,067,561,866.20 × 323,729,056.40
  4. Step 4: Simplify right side
    711,309,779.60x = 345,600,795,593,549,056
  5. Step 5: Solve for x
    x = 345,600,795,593,549,056/711,309,779.60
  6. Step 6: Final answer
    x = 485,865,378.92

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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.