Home / 126,145,374.70-189,218,062.05-45,355,845.10

Finding the Fourth Proportional to 126,145,374.70, 189,218,062.05 and 45,355,845.10

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Solution

The fourth proportional to 126,145,374.70, 189,218,062.05 and 45,355,845.10 is: 68,033,767.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,145,374.70 : 189,218,062.05 = 45,355,845.10 : x
  2. Step 2: Convert to fraction form
    126,145,374.70/189,218,062.05 = 45,355,845.10/x
  3. Step 3: Cross multiply
    126,145,374.70x = 189,218,062.05 × 45,355,845.10
  4. Step 4: Simplify right side
    126,145,374.70x = 8,582,145,112,461,989
  5. Step 5: Solve for x
    x = 8,582,145,112,461,989/126,145,374.70
  6. Step 6: Final answer
    x = 68,033,767.65

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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.