Home / 52,142,985.12-78,188,233.68-18,055,178.40

Finding the Fourth Proportional to 52,142,985.12, 78,188,233.68 and 18,055,178.40

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Solution

The fourth proportional to 52,142,985.12, 78,188,233.68 and 18,055,178.40 is: 27,073,680.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,142,985.12 : 78,188,233.68 = 18,055,178.40 : x
  2. Step 2: Convert to fraction form
    52,142,985.12/78,188,233.68 = 18,055,178.40/x
  3. Step 3: Cross multiply
    52,142,985.12x = 78,188,233.68 × 18,055,178.40
  4. Step 4: Simplify right side
    52,142,985.12x = 1,411,702,507,873,288.50
  5. Step 5: Solve for x
    x = 1,411,702,507,873,288.50/52,142,985.12
  6. Step 6: Final answer
    x = 27,073,680.28

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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.