Home / 123,030,982.80-184,298,468.40-76,831,045.20

Finding the Fourth Proportional to 123,030,982.80, 184,298,468.40 and 76,831,045.20

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Solution

The fourth proportional to 123,030,982.80, 184,298,468.40 and 76,831,045.20 is: 115,091,691.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,030,982.80 : 184,298,468.40 = 76,831,045.20 : x
  2. Step 2: Convert to fraction form
    123,030,982.80/184,298,468.40 = 76,831,045.20/x
  3. Step 3: Cross multiply
    123,030,982.80x = 184,298,468.40 × 76,831,045.20
  4. Step 4: Simplify right side
    123,030,982.80x = 14,159,843,955,931,172
  5. Step 5: Solve for x
    x = 14,159,843,955,931,172/123,030,982.80
  6. Step 6: Final answer
    x = 115,091,691.81

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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.