Home / 165,902,938.60-248,854,407.90-131,638,772.20

Finding the Fourth Proportional to 165,902,938.60, 248,854,407.90 and 131,638,772.20

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Solution

The fourth proportional to 165,902,938.60, 248,854,407.90 and 131,638,772.20 is: 197,458,158.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,902,938.60 : 248,854,407.90 = 131,638,772.20 : x
  2. Step 2: Convert to fraction form
    165,902,938.60/248,854,407.90 = 131,638,772.20/x
  3. Step 3: Cross multiply
    165,902,938.60x = 248,854,407.90 × 131,638,772.20
  4. Step 4: Simplify right side
    165,902,938.60x = 32,758,888,712,513,980
  5. Step 5: Solve for x
    x = 32,758,888,712,513,980/165,902,938.60
  6. Step 6: Final answer
    x = 197,458,158.30

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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.