Home / 140,290,078.67-193,607,056.34-77,565,015.98

Finding the Fourth Proportional to 140,290,078.67, 193,607,056.34 and 77,565,015.98

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Solution

The fourth proportional to 140,290,078.67, 193,607,056.34 and 77,565,015.98 is: 107,043,452.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,290,078.67 : 193,607,056.34 = 77,565,015.98 : x
  2. Step 2: Convert to fraction form
    140,290,078.67/193,607,056.34 = 77,565,015.98/x
  3. Step 3: Cross multiply
    140,290,078.67x = 193,607,056.34 × 77,565,015.98
  4. Step 4: Simplify right side
    140,290,078.67x = 15,017,134,417,497,000
  5. Step 5: Solve for x
    x = 15,017,134,417,497,000/140,290,078.67
  6. Step 6: Final answer
    x = 107,043,452.83

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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.