Home / 115,068,672.43-172,601,827.63-66,515,632.18

Finding the Fourth Proportional to 115,068,672.43, 172,601,827.63 and 66,515,632.18

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Solution

The fourth proportional to 115,068,672.43, 172,601,827.63 and 66,515,632.18 is: 99,772,765.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,068,672.43 : 172,601,827.63 = 66,515,632.18 : x
  2. Step 2: Convert to fraction form
    115,068,672.43/172,601,827.63 = 66,515,632.18/x
  3. Step 3: Cross multiply
    115,068,672.43x = 172,601,827.63 × 66,515,632.18
  4. Step 4: Simplify right side
    115,068,672.43x = 11,480,719,680,232,840
  5. Step 5: Solve for x
    x = 11,480,719,680,232,840/115,068,672.43
  6. Step 6: Final answer
    x = 99,772,765.58

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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.