Home / 76,846,885-106,049,538.66-42,038,828.08

Finding the Fourth Proportional to 76,846,885, 106,049,538.66 and 42,038,828.08

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Solution

The fourth proportional to 76,846,885, 106,049,538.66 and 42,038,828.08 is: 58,014,040.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,846,885 : 106,049,538.66 = 42,038,828.08 : x
  2. Step 2: Convert to fraction form
    76,846,885/106,049,538.66 = 42,038,828.08/x
  3. Step 3: Cross multiply
    76,846,885x = 106,049,538.66 × 42,038,828.08
  4. Step 4: Simplify right side
    76,846,885x = 4,458,198,323,691,053
  5. Step 5: Solve for x
    x = 4,458,198,323,691,053/76,846,885
  6. Step 6: Final answer
    x = 58,014,040.83

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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.