Home / 12,345,629.88-18,518,447.04-5,153,240.28

Finding the Fourth Proportional to 12,345,629.88, 18,518,447.04 and 5,153,240.28

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Solution

The fourth proportional to 12,345,629.88, 18,518,447.04 and 5,153,240.28 is: 7,729,861.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,345,629.88 : 18,518,447.04 = 5,153,240.28 : x
  2. Step 2: Convert to fraction form
    12,345,629.88/18,518,447.04 = 5,153,240.28/x
  3. Step 3: Cross multiply
    12,345,629.88x = 18,518,447.04 × 5,153,240.28
  4. Step 4: Simplify right side
    12,345,629.88x = 95,430,007,209,574.77
  5. Step 5: Solve for x
    x = 95,430,007,209,574.77/12,345,629.88
  6. Step 6: Final answer
    x = 7,729,861.35

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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.