Home / 12,406,968.85-18,610,460.03-3,887,972.05

Finding the Fourth Proportional to 12,406,968.85, 18,610,460.03 and 3,887,972.05

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Solution

The fourth proportional to 12,406,968.85, 18,610,460.03 and 3,887,972.05 is: 5,831,960.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,406,968.85 : 18,610,460.03 = 3,887,972.05 : x
  2. Step 2: Convert to fraction form
    12,406,968.85/18,610,460.03 = 3,887,972.05/x
  3. Step 3: Cross multiply
    12,406,968.85x = 18,610,460.03 × 3,887,972.05
  4. Step 4: Simplify right side
    12,406,968.85x = 72,356,948,434,282.16
  5. Step 5: Solve for x
    x = 72,356,948,434,282.16/12,406,968.85
  6. Step 6: Final answer
    x = 5,831,960.19

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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.