Home / 18,702,750.80-28,032,007.80-9,722,680.40

Finding the Fourth Proportional to 18,702,750.80, 28,032,007.80 and 9,722,680.40

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Solution

The fourth proportional to 18,702,750.80, 28,032,007.80 and 9,722,680.40 is: 14,572,522.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,702,750.80 : 28,032,007.80 = 9,722,680.40 : x
  2. Step 2: Convert to fraction form
    18,702,750.80/28,032,007.80 = 9,722,680.40/x
  3. Step 3: Cross multiply
    18,702,750.80x = 28,032,007.80 × 9,722,680.40
  4. Step 4: Simplify right side
    18,702,750.80x = 272,546,252,809,707.12
  5. Step 5: Solve for x
    x = 272,546,252,809,707.12/18,702,750.80
  6. Step 6: Final answer
    x = 14,572,522.28

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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.