Home / 781,778,324.22-1,172,666,496.03-199,512,582.81

Finding the Fourth Proportional to 781,778,324.22, 1,172,666,496.03 and 199,512,582.81

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Solution

The fourth proportional to 781,778,324.22, 1,172,666,496.03 and 199,512,582.81 is: 299,268,621.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,778,324.22 : 1,172,666,496.03 = 199,512,582.81 : x
  2. Step 2: Convert to fraction form
    781,778,324.22/1,172,666,496.03 = 199,512,582.81/x
  3. Step 3: Cross multiply
    781,778,324.22x = 1,172,666,496.03 × 199,512,582.81
  4. Step 4: Simplify right side
    781,778,324.22x = 233,961,721,397,697,920
  5. Step 5: Solve for x
    x = 233,961,721,397,697,920/781,778,324.22
  6. Step 6: Final answer
    x = 299,268,621.49

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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.