Home / 625,810,219.20-938,715,328.80-455,940,907.20

Finding the Fourth Proportional to 625,810,219.20, 938,715,328.80 and 455,940,907.20

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Solution

The fourth proportional to 625,810,219.20, 938,715,328.80 and 455,940,907.20 is: 683,911,360.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,810,219.20 : 938,715,328.80 = 455,940,907.20 : x
  2. Step 2: Convert to fraction form
    625,810,219.20/938,715,328.80 = 455,940,907.20/x
  3. Step 3: Cross multiply
    625,810,219.20x = 938,715,328.80 × 455,940,907.20
  4. Step 4: Simplify right side
    625,810,219.20x = 427,998,718,615,618,240
  5. Step 5: Solve for x
    x = 427,998,718,615,618,240/625,810,219.20
  6. Step 6: Final answer
    x = 683,911,360.80

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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.