Home / 649,462,085.28-896,387,882.76-385,290,710.28

Finding the Fourth Proportional to 649,462,085.28, 896,387,882.76 and 385,290,710.28

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Solution

The fourth proportional to 649,462,085.28, 896,387,882.76 and 385,290,710.28 is: 531,778,423.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,462,085.28 : 896,387,882.76 = 385,290,710.28 : x
  2. Step 2: Convert to fraction form
    649,462,085.28/896,387,882.76 = 385,290,710.28/x
  3. Step 3: Cross multiply
    649,462,085.28x = 896,387,882.76 × 385,290,710.28
  4. Step 4: Simplify right side
    649,462,085.28x = 345,369,924,034,985,728
  5. Step 5: Solve for x
    x = 345,369,924,034,985,728/649,462,085.28
  6. Step 6: Final answer
    x = 531,778,423.81

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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.