Home / 130,650,961,798.70-180,274,392,795.46-72,777,901,400.57

Finding the Fourth Proportional to 130,650,961,798.70, 180,274,392,795.46 and 72,777,901,400.57

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Solution

The fourth proportional to 130,650,961,798.70, 180,274,392,795.46 and 72,777,901,400.57 is: 100,420,171,449.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,650,961,798.70 : 180,274,392,795.46 = 72,777,901,400.57 : x
  2. Step 2: Convert to fraction form
    130,650,961,798.70/180,274,392,795.46 = 72,777,901,400.57/x
  3. Step 3: Cross multiply
    130,650,961,798.70x = 180,274,392,795.46 × 72,777,901,400.57
  4. Step 4: Simplify right side
    130,650,961,798.70x = 13,119,991,983,915,252,318,208
  5. Step 5: Solve for x
    x = 13,119,991,983,915,252,318,208/130,650,961,798.70
  6. Step 6: Final answer
    x = 100,420,171,449.87

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1.5x scale

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.