Home / 442,673,820.80-664,010,731.20-436,627,203.20

Finding the Fourth Proportional to 442,673,820.80, 664,010,731.20 and 436,627,203.20

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Solution

The fourth proportional to 442,673,820.80, 664,010,731.20 and 436,627,203.20 is: 654,940,804.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,673,820.80 : 664,010,731.20 = 436,627,203.20 : x
  2. Step 2: Convert to fraction form
    442,673,820.80/664,010,731.20 = 436,627,203.20/x
  3. Step 3: Cross multiply
    442,673,820.80x = 664,010,731.20 × 436,627,203.20
  4. Step 4: Simplify right side
    442,673,820.80x = 289,925,148,458,643,008
  5. Step 5: Solve for x
    x = 289,925,148,458,643,008/442,673,820.80
  6. Step 6: Final answer
    x = 654,940,804.80

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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.