Home / 12,212,242.17-18,318,426.45-7,160,009.73

Finding the Fourth Proportional to 12,212,242.17, 18,318,426.45 and 7,160,009.73

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Solution

The fourth proportional to 12,212,242.17, 18,318,426.45 and 7,160,009.73 is: 10,740,051.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,212,242.17 : 18,318,426.45 = 7,160,009.73 : x
  2. Step 2: Convert to fraction form
    12,212,242.17/18,318,426.45 = 7,160,009.73/x
  3. Step 3: Cross multiply
    12,212,242.17x = 18,318,426.45 × 7,160,009.73
  4. Step 4: Simplify right side
    12,212,242.17x = 131,160,111,620,289.36
  5. Step 5: Solve for x
    x = 131,160,111,620,289.36/12,212,242.17
  6. Step 6: Final answer
    x = 10,740,051.65

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1.5x scale

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.