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Finding the Fourth Proportional to 997,219,752.52, 1,375,449,401.46 and 699,928,303.72

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Solution

The fourth proportional to 997,219,752.52, 1,375,449,401.46 and 699,928,303.72 is: 965,400,017.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,219,752.52 : 1,375,449,401.46 = 699,928,303.72 : x
  2. Step 2: Convert to fraction form
    997,219,752.52/1,375,449,401.46 = 699,928,303.72/x
  3. Step 3: Cross multiply
    997,219,752.52x = 1,375,449,401.46 × 699,928,303.72
  4. Step 4: Simplify right side
    997,219,752.52x = 962,715,966,416,587,136
  5. Step 5: Solve for x
    x = 962,715,966,416,587,136/997,219,752.52
  6. Step 6: Final answer
    x = 965,400,017.38

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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.