Home / 123,030,974.80-184,298,456.40-76,831,037.20

Finding the Fourth Proportional to 123,030,974.80, 184,298,456.40 and 76,831,037.20

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Solution

The fourth proportional to 123,030,974.80, 184,298,456.40 and 76,831,037.20 is: 115,091,679.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,030,974.80 : 184,298,456.40 = 76,831,037.20 : x
  2. Step 2: Convert to fraction form
    123,030,974.80/184,298,456.40 = 76,831,037.20/x
  3. Step 3: Cross multiply
    123,030,974.80x = 184,298,456.40 × 76,831,037.20
  4. Step 4: Simplify right side
    123,030,974.80x = 14,159,841,559,570,980
  5. Step 5: Solve for x
    x = 14,159,841,559,570,980/123,030,974.80
  6. Step 6: Final answer
    x = 115,091,679.82

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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.