Home / 155,632,812.40-214,773,099.10-85,068,886.03

Finding the Fourth Proportional to 155,632,812.40, 214,773,099.10 and 85,068,886.03

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Solution

The fourth proportional to 155,632,812.40, 214,773,099.10 and 85,068,886.03 is: 117,394,963.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,632,812.40 : 214,773,099.10 = 85,068,886.03 : x
  2. Step 2: Convert to fraction form
    155,632,812.40/214,773,099.10 = 85,068,886.03/x
  3. Step 3: Cross multiply
    155,632,812.40x = 214,773,099.10 × 85,068,886.03
  4. Step 4: Simplify right side
    155,632,812.40x = 18,270,508,289,138,088
  5. Step 5: Solve for x
    x = 18,270,508,289,138,088/155,632,812.40
  6. Step 6: Final answer
    x = 117,394,963.23

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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.