Home / 18,794,129.40-28,191,194.10-13,125,425.40

Finding the Fourth Proportional to 18,794,129.40, 28,191,194.10 and 13,125,425.40

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Solution

The fourth proportional to 18,794,129.40, 28,191,194.10 and 13,125,425.40 is: 19,688,138.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,794,129.40 : 28,191,194.10 = 13,125,425.40 : x
  2. Step 2: Convert to fraction form
    18,794,129.40/28,191,194.10 = 13,125,425.40/x
  3. Step 3: Cross multiply
    18,794,129.40x = 28,191,194.10 × 13,125,425.40
  4. Step 4: Simplify right side
    18,794,129.40x = 370,021,415,096,470.19
  5. Step 5: Solve for x
    x = 370,021,415,096,470.19/18,794,129.40
  6. Step 6: Final answer
    x = 19,688,138.10

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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.