Home / 776,933,141.20-1,165,399,711.80-532,045,128.40

Finding the Fourth Proportional to 776,933,141.20, 1,165,399,711.80 and 532,045,128.40

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Solution

The fourth proportional to 776,933,141.20, 1,165,399,711.80 and 532,045,128.40 is: 798,067,692.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,933,141.20 : 1,165,399,711.80 = 532,045,128.40 : x
  2. Step 2: Convert to fraction form
    776,933,141.20/1,165,399,711.80 = 532,045,128.40/x
  3. Step 3: Cross multiply
    776,933,141.20x = 1,165,399,711.80 × 532,045,128.40
  4. Step 4: Simplify right side
    776,933,141.20x = 620,045,239,301,953,920
  5. Step 5: Solve for x
    x = 620,045,239,301,953,920/776,933,141.20
  6. Step 6: Final answer
    x = 798,067,692.60

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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.