Home / 649,462,097.22-896,387,899.40-385,290,722.22

Finding the Fourth Proportional to 649,462,097.22, 896,387,899.40 and 385,290,722.22

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Solution

The fourth proportional to 649,462,097.22, 896,387,899.40 and 385,290,722.22 is: 531,778,440.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,462,097.22 : 896,387,899.40 = 385,290,722.22 : x
  2. Step 2: Convert to fraction form
    649,462,097.22/896,387,899.40 = 385,290,722.22/x
  3. Step 3: Cross multiply
    649,462,097.22x = 896,387,899.40 × 385,290,722.22
  4. Step 4: Simplify right side
    649,462,097.22x = 345,369,941,149,094,720
  5. Step 5: Solve for x
    x = 345,369,941,149,094,720/649,462,097.22
  6. Step 6: Final answer
    x = 531,778,440.39

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1.5x scale

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.