Home / 78,101,361.29-107,790,857.89-48,341,554.87

Finding the Fourth Proportional to 78,101,361.29, 107,790,857.89 and 48,341,554.87

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Solution

The fourth proportional to 78,101,361.29, 107,790,857.89 and 48,341,554.87 is: 66,718,141.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,101,361.29 : 107,790,857.89 = 48,341,554.87 : x
  2. Step 2: Convert to fraction form
    78,101,361.29/107,790,857.89 = 48,341,554.87/x
  3. Step 3: Cross multiply
    78,101,361.29x = 107,790,857.89 × 48,341,554.87
  4. Step 4: Simplify right side
    78,101,361.29x = 5,210,777,671,207,338
  5. Step 5: Solve for x
    x = 5,210,777,671,207,338/78,101,361.29
  6. Step 6: Final answer
    x = 66,718,141.46

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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.