Home / 758,211,940.48-1,137,360,454.08-212,910,958.72

Finding the Fourth Proportional to 758,211,940.48, 1,137,360,454.08 and 212,910,958.72

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Solution

The fourth proportional to 758,211,940.48, 1,137,360,454.08 and 212,910,958.72 is: 319,378,384.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,211,940.48 : 1,137,360,454.08 = 212,910,958.72 : x
  2. Step 2: Convert to fraction form
    758,211,940.48/1,137,360,454.08 = 212,910,958.72/x
  3. Step 3: Cross multiply
    758,211,940.48x = 1,137,360,454.08 × 212,910,958.72
  4. Step 4: Simplify right side
    758,211,940.48x = 242,156,504,688,387,328
  5. Step 5: Solve for x
    x = 242,156,504,688,387,328/758,211,940.48
  6. Step 6: Final answer
    x = 319,378,384.54

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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.