Home / 12,487,945.40-18,731,918.10-3,512,497.40

Finding the Fourth Proportional to 12,487,945.40, 18,731,918.10 and 3,512,497.40

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Solution

The fourth proportional to 12,487,945.40, 18,731,918.10 and 3,512,497.40 is: 5,268,746.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,487,945.40 : 18,731,918.10 = 3,512,497.40 : x
  2. Step 2: Convert to fraction form
    12,487,945.40/18,731,918.10 = 3,512,497.40/x
  3. Step 3: Cross multiply
    12,487,945.40x = 18,731,918.10 × 3,512,497.40
  4. Step 4: Simplify right side
    12,487,945.40x = 65,795,813,623,262.95
  5. Step 5: Solve for x
    x = 65,795,813,623,262.95/12,487,945.40
  6. Step 6: Final answer
    x = 5,268,746.10

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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.