Home / 551,397,746.80-827,096,620.20-509,307,619.60

Finding the Fourth Proportional to 551,397,746.80, 827,096,620.20 and 509,307,619.60

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Solution

The fourth proportional to 551,397,746.80, 827,096,620.20 and 509,307,619.60 is: 763,961,429.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,397,746.80 : 827,096,620.20 = 509,307,619.60 : x
  2. Step 2: Convert to fraction form
    551,397,746.80/827,096,620.20 = 509,307,619.60/x
  3. Step 3: Cross multiply
    551,397,746.80x = 827,096,620.20 × 509,307,619.60
  4. Step 4: Simplify right side
    551,397,746.80x = 421,246,610,813,267,328
  5. Step 5: Solve for x
    x = 421,246,610,813,267,328/551,397,746.80
  6. Step 6: Final answer
    x = 763,961,429.40

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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.