Home / 649,462,089.28-896,387,888.28-385,290,714.28

Finding the Fourth Proportional to 649,462,089.28, 896,387,888.28 and 385,290,714.28

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Solution

The fourth proportional to 649,462,089.28, 896,387,888.28 and 385,290,714.28 is: 531,778,429.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,462,089.28 : 896,387,888.28 = 385,290,714.28 : x
  2. Step 2: Convert to fraction form
    649,462,089.28/896,387,888.28 = 385,290,714.28/x
  3. Step 3: Cross multiply
    649,462,089.28x = 896,387,888.28 × 385,290,714.28
  4. Step 4: Simplify right side
    649,462,089.28x = 345,369,929,747,342,016
  5. Step 5: Solve for x
    x = 345,369,929,747,342,016/649,462,089.28
  6. Step 6: Final answer
    x = 531,778,429.33

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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.