Home / 219,792,653.09-303,314,458.08-120,679,820.13

Finding the Fourth Proportional to 219,792,653.09, 303,314,458.08 and 120,679,820.13

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Solution

The fourth proportional to 219,792,653.09, 303,314,458.08 and 120,679,820.13 is: 166,538,479.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,792,653.09 : 303,314,458.08 = 120,679,820.13 : x
  2. Step 2: Convert to fraction form
    219,792,653.09/303,314,458.08 = 120,679,820.13/x
  3. Step 3: Cross multiply
    219,792,653.09x = 303,314,458.08 × 120,679,820.13
  4. Step 4: Simplify right side
    219,792,653.09x = 36,603,934,243,922,824
  5. Step 5: Solve for x
    x = 36,603,934,243,922,824/219,792,653.09
  6. Step 6: Final answer
    x = 166,538,479.47

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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.