Home / 13,500,274.79-18,630,428.59-7,305,321.55

Finding the Fourth Proportional to 13,500,274.79, 18,630,428.59 and 7,305,321.55

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Solution

The fourth proportional to 13,500,274.79, 18,630,428.59 and 7,305,321.55 is: 10,081,370.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,500,274.79 : 18,630,428.59 = 7,305,321.55 : x
  2. Step 2: Convert to fraction form
    13,500,274.79/18,630,428.59 = 7,305,321.55/x
  3. Step 3: Cross multiply
    13,500,274.79x = 18,630,428.59 × 7,305,321.55
  4. Step 4: Simplify right side
    13,500,274.79x = 136,101,271,399,423.73
  5. Step 5: Solve for x
    x = 136,101,271,399,423.73/13,500,274.79
  6. Step 6: Final answer
    x = 10,081,370.45

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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.