Home / 155,142,728.70-232,714,093.05-68,789,471.10

Finding the Fourth Proportional to 155,142,728.70, 232,714,093.05 and 68,789,471.10

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Solution

The fourth proportional to 155,142,728.70, 232,714,093.05 and 68,789,471.10 is: 103,184,206.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,142,728.70 : 232,714,093.05 = 68,789,471.10 : x
  2. Step 2: Convert to fraction form
    155,142,728.70/232,714,093.05 = 68,789,471.10/x
  3. Step 3: Cross multiply
    155,142,728.70x = 232,714,093.05 × 68,789,471.10
  4. Step 4: Simplify right side
    155,142,728.70x = 16,008,279,378,425,686
  5. Step 5: Solve for x
    x = 16,008,279,378,425,686/155,142,728.70
  6. Step 6: Final answer
    x = 103,184,206.65

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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.