Home / 661,254,238.41-912,325,414.18-375,098,603.25

Finding the Fourth Proportional to 661,254,238.41, 912,325,414.18 and 375,098,603.25

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Solution

The fourth proportional to 661,254,238.41, 912,325,414.18 and 375,098,603.25 is: 517,519,538.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,254,238.41 : 912,325,414.18 = 375,098,603.25 : x
  2. Step 2: Convert to fraction form
    661,254,238.41/912,325,414.18 = 375,098,603.25/x
  3. Step 3: Cross multiply
    661,254,238.41x = 912,325,414.18 × 375,098,603.25
  4. Step 4: Simplify right side
    661,254,238.41x = 342,211,988,568,395,712
  5. Step 5: Solve for x
    x = 342,211,988,568,395,712/661,254,238.41
  6. Step 6: Final answer
    x = 517,519,538.92

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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.