Home / 81,331,290-122,000,858.64-26,742,666.96

Finding the Fourth Proportional to 81,331,290, 122,000,858.64 and 26,742,666.96

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Solution

The fourth proportional to 81,331,290, 122,000,858.64 and 26,742,666.96 is: 40,115,290.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,331,290 : 122,000,858.64 = 26,742,666.96 : x
  2. Step 2: Convert to fraction form
    81,331,290/122,000,858.64 = 26,742,666.96/x
  3. Step 3: Cross multiply
    81,331,290x = 122,000,858.64 × 26,742,666.96
  4. Step 4: Simplify right side
    81,331,290x = 3,262,628,331,443,558.50
  5. Step 5: Solve for x
    x = 3,262,628,331,443,558.50/81,331,290
  6. Step 6: Final answer
    x = 40,115,290.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.