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Finding the Fourth Proportional to 13,459,471.56, 18,573,976.08 and 7,347,900.06

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Solution

The fourth proportional to 13,459,471.56, 18,573,976.08 and 7,347,900.06 is: 10,140,050.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,459,471.56 : 18,573,976.08 = 7,347,900.06 : x
  2. Step 2: Convert to fraction form
    13,459,471.56/18,573,976.08 = 7,347,900.06/x
  3. Step 3: Cross multiply
    13,459,471.56x = 18,573,976.08 × 7,347,900.06
  4. Step 4: Simplify right side
    13,459,471.56x = 136,479,719,952,670.55
  5. Step 5: Solve for x
    x = 136,479,719,952,670.55/13,459,471.56
  6. Step 6: Final answer
    x = 10,140,050.40

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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.