Home / 72,162,447.90-99,598,645.35-42,810,072.90

Finding the Fourth Proportional to 72,162,447.90, 99,598,645.35 and 42,810,072.90

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Solution

The fourth proportional to 72,162,447.90, 99,598,645.35 and 42,810,072.90 is: 59,086,483.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,162,447.90 : 99,598,645.35 = 42,810,072.90 : x
  2. Step 2: Convert to fraction form
    72,162,447.90/99,598,645.35 = 42,810,072.90/x
  3. Step 3: Cross multiply
    72,162,447.90x = 99,598,645.35 × 42,810,072.90
  4. Step 4: Simplify right side
    72,162,447.90x = 4,263,825,268,174,745.50
  5. Step 5: Solve for x
    x = 4,263,825,268,174,745.50/72,162,447.90
  6. Step 6: Final answer
    x = 59,086,483.24

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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.