Home / 90,889,015.85-136,373,139.67-31,843,754.86

Finding the Fourth Proportional to 90,889,015.85, 136,373,139.67 and 31,843,754.86

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Solution

The fourth proportional to 90,889,015.85, 136,373,139.67 and 31,843,754.86 is: 47,779,512.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,889,015.85 : 136,373,139.67 = 31,843,754.86 : x
  2. Step 2: Convert to fraction form
    90,889,015.85/136,373,139.67 = 31,843,754.86/x
  3. Step 3: Cross multiply
    90,889,015.85x = 136,373,139.67 × 31,843,754.86
  4. Step 4: Simplify right side
    90,889,015.85x = 4,342,632,829,140,021
  5. Step 5: Solve for x
    x = 4,342,632,829,140,021/90,889,015.85
  6. Step 6: Final answer
    x = 47,779,512.06

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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.