Home / 781,778,323.22-1,172,666,494.53-199,512,581.81

Finding the Fourth Proportional to 781,778,323.22, 1,172,666,494.53 and 199,512,581.81

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Solution

The fourth proportional to 781,778,323.22, 1,172,666,494.53 and 199,512,581.81 is: 299,268,619.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,778,323.22 : 1,172,666,494.53 = 199,512,581.81 : x
  2. Step 2: Convert to fraction form
    781,778,323.22/1,172,666,494.53 = 199,512,581.81/x
  3. Step 3: Cross multiply
    781,778,323.22x = 1,172,666,494.53 × 199,512,581.81
  4. Step 4: Simplify right side
    781,778,323.22x = 233,961,719,919,899,200
  5. Step 5: Solve for x
    x = 233,961,719,919,899,200/781,778,323.22
  6. Step 6: Final answer
    x = 299,268,619.98

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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.