Home / 275,128,776.12-379,680,714.54-149,681,679.72

Finding the Fourth Proportional to 275,128,776.12, 379,680,714.54 and 149,681,679.72

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Solution

The fourth proportional to 275,128,776.12, 379,680,714.54 and 149,681,679.72 is: 206,562,352.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,128,776.12 : 379,680,714.54 = 149,681,679.72 : x
  2. Step 2: Convert to fraction form
    275,128,776.12/379,680,714.54 = 149,681,679.72/x
  3. Step 3: Cross multiply
    275,128,776.12x = 379,680,714.54 × 149,681,679.72
  4. Step 4: Simplify right side
    275,128,776.12x = 56,831,247,109,637,032
  5. Step 5: Solve for x
    x = 56,831,247,109,637,032/275,128,776.12
  6. Step 6: Final answer
    x = 206,562,352.04

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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.