Home / 189,842,726,100.67-261,983,221,451.78-103,035,297,161.74

Finding the Fourth Proportional to 189,842,726,100.67, 261,983,221,451.78 and 103,035,297,161.74

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Solution

The fourth proportional to 189,842,726,100.67, 261,983,221,451.78 and 103,035,297,161.74 is: 142,188,850,887.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,842,726,100.67 : 261,983,221,451.78 = 103,035,297,161.74 : x
  2. Step 2: Convert to fraction form
    189,842,726,100.67/261,983,221,451.78 = 103,035,297,161.74/x
  3. Step 3: Cross multiply
    189,842,726,100.67x = 261,983,221,451.78 × 103,035,297,161.74
  4. Step 4: Simplify right side
    189,842,726,100.67x = 26,993,519,073,674,089,463,808
  5. Step 5: Solve for x
    x = 26,993,519,073,674,089,463,808/189,842,726,100.67
  6. Step 6: Final answer
    x = 142,188,850,887.87

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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.