Home / 12,107,923.20-18,152,845.20-7,314,602.40

Finding the Fourth Proportional to 12,107,923.20, 18,152,845.20 and 7,314,602.40

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Solution

The fourth proportional to 12,107,923.20, 18,152,845.20 and 7,314,602.40 is: 10,966,442.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,107,923.20 : 18,152,845.20 = 7,314,602.40 : x
  2. Step 2: Convert to fraction form
    12,107,923.20/18,152,845.20 = 7,314,602.40/x
  3. Step 3: Cross multiply
    12,107,923.20x = 18,152,845.20 × 7,314,602.40
  4. Step 4: Simplify right side
    12,107,923.20x = 132,780,845,066,748.48
  5. Step 5: Solve for x
    x = 132,780,845,066,748.48/12,107,923.20
  6. Step 6: Final answer
    x = 10,966,442.62

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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.