Home / 90,724,234.60-135,999,260.70-30,108,759.40

Finding the Fourth Proportional to 90,724,234.60, 135,999,260.70 and 30,108,759.40

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Solution

The fourth proportional to 90,724,234.60, 135,999,260.70 and 30,108,759.40 is: 45,134,236.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,724,234.60 : 135,999,260.70 = 30,108,759.40 : x
  2. Step 2: Convert to fraction form
    90,724,234.60/135,999,260.70 = 30,108,759.40/x
  3. Step 3: Cross multiply
    90,724,234.60x = 135,999,260.70 × 30,108,759.40
  4. Step 4: Simplify right side
    90,724,234.60x = 4,094,769,018,994,175
  5. Step 5: Solve for x
    x = 4,094,769,018,994,175/90,724,234.60
  6. Step 6: Final answer
    x = 45,134,236.04

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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.