Home / 442,673,777.80-664,010,666.70-436,627,160.20

Finding the Fourth Proportional to 442,673,777.80, 664,010,666.70 and 436,627,160.20

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Solution

The fourth proportional to 442,673,777.80, 664,010,666.70 and 436,627,160.20 is: 654,940,740.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,673,777.80 : 664,010,666.70 = 436,627,160.20 : x
  2. Step 2: Convert to fraction form
    442,673,777.80/664,010,666.70 = 436,627,160.20/x
  3. Step 3: Cross multiply
    442,673,777.80x = 664,010,666.70 × 436,627,160.20
  4. Step 4: Simplify right side
    442,673,777.80x = 289,925,091,743,729,728
  5. Step 5: Solve for x
    x = 289,925,091,743,729,728/442,673,777.80
  6. Step 6: Final answer
    x = 654,940,740.30

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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.