Home / 685,211,500,137.05-1,027,851,390,144-260,772,660,562.70

Finding the Fourth Proportional to 685,211,500,137.05, 1,027,851,390,144 and 260,772,660,562.70

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Solution

The fourth proportional to 685,211,500,137.05, 1,027,851,390,144 and 260,772,660,562.70 is: 391,171,983,566.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,211,500,137.05 : 1,027,851,390,144 = 260,772,660,562.70 : x
  2. Step 2: Convert to fraction form
    685,211,500,137.05/1,027,851,390,144 = 260,772,660,562.70/x
  3. Step 3: Cross multiply
    685,211,500,137.05x = 1,027,851,390,144 × 260,772,660,562.70
  4. Step 4: Simplify right side
    685,211,500,137.05x = 268,035,541,670,920,638,693,376
  5. Step 5: Solve for x
    x = 268,035,541,670,920,638,693,376/685,211,500,137.05
  6. Step 6: Final answer
    x = 391,171,983,566.11

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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.