Home / 121,133,039.42-167,162,744.03-66,128,895.92

Finding the Fourth Proportional to 121,133,039.42, 167,162,744.03 and 66,128,895.92

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Solution

The fourth proportional to 121,133,039.42, 167,162,744.03 and 66,128,895.92 is: 91,257,412.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,133,039.42 : 167,162,744.03 = 66,128,895.92 : x
  2. Step 2: Convert to fraction form
    121,133,039.42/167,162,744.03 = 66,128,895.92/x
  3. Step 3: Cross multiply
    121,133,039.42x = 167,162,744.03 × 66,128,895.92
  4. Step 4: Simplify right side
    121,133,039.42x = 11,054,287,701,748,734
  5. Step 5: Solve for x
    x = 11,054,287,701,748,734/121,133,039.42
  6. Step 6: Final answer
    x = 91,257,412.14

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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.