Home / 19,152,815.10-28,729,222.65-11,972,456.70

Finding the Fourth Proportional to 19,152,815.10, 28,729,222.65 and 11,972,456.70

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Solution

The fourth proportional to 19,152,815.10, 28,729,222.65 and 11,972,456.70 is: 17,958,685.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,152,815.10 : 28,729,222.65 = 11,972,456.70 : x
  2. Step 2: Convert to fraction form
    19,152,815.10/28,729,222.65 = 11,972,456.70/x
  3. Step 3: Cross multiply
    19,152,815.10x = 28,729,222.65 × 11,972,456.70
  4. Step 4: Simplify right side
    19,152,815.10x = 343,959,374,201,784.19
  5. Step 5: Solve for x
    x = 343,959,374,201,784.19/19,152,815.10
  6. Step 6: Final answer
    x = 17,958,685.05

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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.