Home / 53,724,729.60-80,415,633.60-42,387,321.60

Finding the Fourth Proportional to 53,724,729.60, 80,415,633.60 and 42,387,321.60

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Solution

The fourth proportional to 53,724,729.60, 80,415,633.60 and 42,387,321.60 is: 63,445,704.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,724,729.60 : 80,415,633.60 = 42,387,321.60 : x
  2. Step 2: Convert to fraction form
    53,724,729.60/80,415,633.60 = 42,387,321.60/x
  3. Step 3: Cross multiply
    53,724,729.60x = 80,415,633.60 × 42,387,321.60
  4. Step 4: Simplify right side
    53,724,729.60x = 3,408,603,323,070,965.50
  5. Step 5: Solve for x
    x = 3,408,603,323,070,965.50/53,724,729.60
  6. Step 6: Final answer
    x = 63,445,704.58

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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.