Home / 219,792,653.82-303,314,459.13-120,679,820.87

Finding the Fourth Proportional to 219,792,653.82, 303,314,459.13 and 120,679,820.87

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Solution

The fourth proportional to 219,792,653.82, 303,314,459.13 and 120,679,820.87 is: 166,538,480.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,792,653.82 : 303,314,459.13 = 120,679,820.87 : x
  2. Step 2: Convert to fraction form
    219,792,653.82/303,314,459.13 = 120,679,820.87/x
  3. Step 3: Cross multiply
    219,792,653.82x = 303,314,459.13 × 120,679,820.87
  4. Step 4: Simplify right side
    219,792,653.82x = 36,603,934,593,572,760
  5. Step 5: Solve for x
    x = 36,603,934,593,572,760/219,792,653.82
  6. Step 6: Final answer
    x = 166,538,480.51

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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.