Home / 126,743,138.60-190,114,707.90-31,005,026.60

Finding the Fourth Proportional to 126,743,138.60, 190,114,707.90 and 31,005,026.60

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Solution

The fourth proportional to 126,743,138.60, 190,114,707.90 and 31,005,026.60 is: 46,507,539.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,743,138.60 : 190,114,707.90 = 31,005,026.60 : x
  2. Step 2: Convert to fraction form
    126,743,138.60/190,114,707.90 = 31,005,026.60/x
  3. Step 3: Cross multiply
    126,743,138.60x = 190,114,707.90 × 31,005,026.60
  4. Step 4: Simplify right side
    126,743,138.60x = 5,894,511,575,490,731
  5. Step 5: Solve for x
    x = 5,894,511,575,490,731/126,743,138.60
  6. Step 6: Final answer
    x = 46,507,539.90

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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.