Home / 131,471,346.40-197,207,019.60-80,453,010.40

Finding the Fourth Proportional to 131,471,346.40, 197,207,019.60 and 80,453,010.40

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Solution

The fourth proportional to 131,471,346.40, 197,207,019.60 and 80,453,010.40 is: 120,679,515.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,471,346.40 : 197,207,019.60 = 80,453,010.40 : x
  2. Step 2: Convert to fraction form
    131,471,346.40/197,207,019.60 = 80,453,010.40/x
  3. Step 3: Cross multiply
    131,471,346.40x = 197,207,019.60 × 80,453,010.40
  4. Step 4: Simplify right side
    131,471,346.40x = 15,865,898,398,831,804
  5. Step 5: Solve for x
    x = 15,865,898,398,831,804/131,471,346.40
  6. Step 6: Final answer
    x = 120,679,515.60

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1.5x scale

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.