Home / 13,373,981.28-18,455,830.56-7,867,951.20

Finding the Fourth Proportional to 13,373,981.28, 18,455,830.56 and 7,867,951.20

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Solution

The fourth proportional to 13,373,981.28, 18,455,830.56 and 7,867,951.20 is: 10,857,617.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,373,981.28 : 18,455,830.56 = 7,867,951.20 : x
  2. Step 2: Convert to fraction form
    13,373,981.28/18,455,830.56 = 7,867,951.20/x
  3. Step 3: Cross multiply
    13,373,981.28x = 18,455,830.56 × 7,867,951.20
  4. Step 4: Simplify right side
    13,373,981.28x = 145,209,574,201,548.66
  5. Step 5: Solve for x
    x = 145,209,574,201,548.66/13,373,981.28
  6. Step 6: Final answer
    x = 10,857,617.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.