Home / 77,353,729.20-106,748,200.80-42,549,067.44

Finding the Fourth Proportional to 77,353,729.20, 106,748,200.80 and 42,549,067.44

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Solution

The fourth proportional to 77,353,729.20, 106,748,200.80 and 42,549,067.44 is: 58,717,743.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,353,729.20 : 106,748,200.80 = 42,549,067.44 : x
  2. Step 2: Convert to fraction form
    77,353,729.20/106,748,200.80 = 42,549,067.44/x
  3. Step 3: Cross multiply
    77,353,729.20x = 106,748,200.80 × 42,549,067.44
  4. Step 4: Simplify right side
    77,353,729.20x = 4,542,036,394,937,862
  5. Step 5: Solve for x
    x = 4,542,036,394,937,862/77,353,729.20
  6. Step 6: Final answer
    x = 58,717,743.05

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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.