Home / 997,689,694.20-1,376,163,041.34-639,890,739.95

Finding the Fourth Proportional to 997,689,694.20, 1,376,163,041.34 and 639,890,739.95

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Solution

The fourth proportional to 997,689,694.20, 1,376,163,041.34 and 639,890,739.95 is: 882,633,139.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,689,694.20 : 1,376,163,041.34 = 639,890,739.95 : x
  2. Step 2: Convert to fraction form
    997,689,694.20/1,376,163,041.34 = 639,890,739.95/x
  3. Step 3: Cross multiply
    997,689,694.20x = 1,376,163,041.34 × 639,890,739.95
  4. Step 4: Simplify right side
    997,689,694.20x = 880,593,986,810,445,952
  5. Step 5: Solve for x
    x = 880,593,986,810,445,952/997,689,694.20
  6. Step 6: Final answer
    x = 882,633,139.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.