Home / 54,708,978.20-75,490,994.37-31,190,548.82

Finding the Fourth Proportional to 54,708,978.20, 75,490,994.37 and 31,190,548.82

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Solution

The fourth proportional to 54,708,978.20, 75,490,994.37 and 31,190,548.82 is: 43,038,741.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,708,978.20 : 75,490,994.37 = 31,190,548.82 : x
  2. Step 2: Convert to fraction form
    54,708,978.20/75,490,994.37 = 31,190,548.82/x
  3. Step 3: Cross multiply
    54,708,978.20x = 75,490,994.37 × 31,190,548.82
  4. Step 4: Simplify right side
    54,708,978.20x = 2,354,605,545,367,830.50
  5. Step 5: Solve for x
    x = 2,354,605,545,367,830.50/54,708,978.20
  6. Step 6: Final answer
    x = 43,038,741.04

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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.