Home / 717,704,551.20-1,076,556,826.80-391,187,200.80

Finding the Fourth Proportional to 717,704,551.20, 1,076,556,826.80 and 391,187,200.80

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Solution

The fourth proportional to 717,704,551.20, 1,076,556,826.80 and 391,187,200.80 is: 586,780,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,704,551.20 : 1,076,556,826.80 = 391,187,200.80 : x
  2. Step 2: Convert to fraction form
    717,704,551.20/1,076,556,826.80 = 391,187,200.80/x
  3. Step 3: Cross multiply
    717,704,551.20x = 1,076,556,826.80 × 391,187,200.80
  4. Step 4: Simplify right side
    717,704,551.20x = 421,135,251,578,022,400
  5. Step 5: Solve for x
    x = 421,135,251,578,022,400/717,704,551.20
  6. Step 6: Final answer
    x = 586,780,801.20

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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.