Home / 649,462,103.28-896,387,907.60-385,290,728.28

Finding the Fourth Proportional to 649,462,103.28, 896,387,907.60 and 385,290,728.28

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Solution

The fourth proportional to 649,462,103.28, 896,387,907.60 and 385,290,728.28 is: 531,778,448.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,462,103.28 : 896,387,907.60 = 385,290,728.28 : x
  2. Step 2: Convert to fraction form
    649,462,103.28/896,387,907.60 = 385,290,728.28/x
  3. Step 3: Cross multiply
    649,462,103.28x = 896,387,907.60 × 385,290,728.28
  4. Step 4: Simplify right side
    649,462,103.28x = 345,369,949,740,589,312
  5. Step 5: Solve for x
    x = 345,369,949,740,589,312/649,462,103.28
  6. Step 6: Final answer
    x = 531,778,448.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.