Home / 81,112,980.96-111,940,396.20-46,316,848.68

Finding the Fourth Proportional to 81,112,980.96, 111,940,396.20 and 46,316,848.68

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Solution

The fourth proportional to 81,112,980.96, 111,940,396.20 and 46,316,848.68 is: 63,919,810.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,112,980.96 : 111,940,396.20 = 46,316,848.68 : x
  2. Step 2: Convert to fraction form
    81,112,980.96/111,940,396.20 = 46,316,848.68/x
  3. Step 3: Cross multiply
    81,112,980.96x = 111,940,396.20 × 46,316,848.68
  4. Step 4: Simplify right side
    81,112,980.96x = 5,184,726,391,974,647
  5. Step 5: Solve for x
    x = 5,184,726,391,974,647/81,112,980.96
  6. Step 6: Final answer
    x = 63,919,810.75

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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.