Home / 81,505,506,969.30-122,314,106,309.88-28,446,540,083.76

Finding the Fourth Proportional to 81,505,506,969.30, 122,314,106,309.88 and 28,446,540,083.76

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Solution

The fourth proportional to 81,505,506,969.30, 122,314,106,309.88 and 28,446,540,083.76 is: 42,689,301,095.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,505,506,969.30 : 122,314,106,309.88 = 28,446,540,083.76 : x
  2. Step 2: Convert to fraction form
    81,505,506,969.30/122,314,106,309.88 = 28,446,540,083.76/x
  3. Step 3: Cross multiply
    81,505,506,969.30x = 122,314,106,309.88 × 28,446,540,083.76
  4. Step 4: Simplify right side
    81,505,506,969.30x = 3,479,413,127,953,283,284,992
  5. Step 5: Solve for x
    x = 3,479,413,127,953,283,284,992/81,505,506,969.30
  6. Step 6: Final answer
    x = 42,689,301,095.49

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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.