Home / 13,809,172.43-20,719,731.89-7,411,951.40

Finding the Fourth Proportional to 13,809,172.43, 20,719,731.89 and 7,411,951.40

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Solution

The fourth proportional to 13,809,172.43, 20,719,731.89 and 7,411,951.40 is: 11,121,133.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809,172.43 : 20,719,731.89 = 7,411,951.40 : x
  2. Step 2: Convert to fraction form
    13,809,172.43/20,719,731.89 = 7,411,951.40/x
  3. Step 3: Cross multiply
    13,809,172.43x = 20,719,731.89 × 7,411,951.40
  4. Step 4: Simplify right side
    13,809,172.43x = 153,573,645,704,641.34
  5. Step 5: Solve for x
    x = 153,573,645,704,641.34/13,809,172.43
  6. Step 6: Final answer
    x = 11,121,133.18

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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.