Home / 103,578,944.31-142,928,766.41-57,166,208.78

Finding the Fourth Proportional to 103,578,944.31, 142,928,766.41 and 57,166,208.78

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Solution

The fourth proportional to 103,578,944.31, 142,928,766.41 and 57,166,208.78 is: 78,883,751.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,578,944.31 : 142,928,766.41 = 57,166,208.78 : x
  2. Step 2: Convert to fraction form
    103,578,944.31/142,928,766.41 = 57,166,208.78/x
  3. Step 3: Cross multiply
    103,578,944.31x = 142,928,766.41 × 57,166,208.78
  4. Step 4: Simplify right side
    103,578,944.31x = 8,170,695,700,261,436
  5. Step 5: Solve for x
    x = 8,170,695,700,261,436/103,578,944.31
  6. Step 6: Final answer
    x = 78,883,751.47

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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.