Home / 13,149,349.50-18,146,489.74-7,348,144.88

Finding the Fourth Proportional to 13,149,349.50, 18,146,489.74 and 7,348,144.88

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Solution

The fourth proportional to 13,149,349.50, 18,146,489.74 and 7,348,144.88 is: 10,140,656.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,149,349.50 : 18,146,489.74 = 7,348,144.88 : x
  2. Step 2: Convert to fraction form
    13,149,349.50/18,146,489.74 = 7,348,144.88/x
  3. Step 3: Cross multiply
    13,149,349.50x = 18,146,489.74 × 7,348,144.88
  4. Step 4: Simplify right side
    13,149,349.50x = 133,343,035,672,953.52
  5. Step 5: Solve for x
    x = 133,343,035,672,953.52/13,149,349.50
  6. Step 6: Final answer
    x = 10,140,656.44

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1.5x scale

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.