Home / 121,071,683.76-167,082,477.48-66,071,089.68

Finding the Fourth Proportional to 121,071,683.76, 167,082,477.48 and 66,071,089.68

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Solution

The fourth proportional to 121,071,683.76, 167,082,477.48 and 66,071,089.68 is: 91,180,043.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,071,683.76 : 167,082,477.48 = 66,071,089.68 : x
  2. Step 2: Convert to fraction form
    121,071,683.76/167,082,477.48 = 66,071,089.68/x
  3. Step 3: Cross multiply
    121,071,683.76x = 167,082,477.48 × 66,071,089.68
  4. Step 4: Simplify right side
    121,071,683.76x = 11,039,321,353,537,660
  5. Step 5: Solve for x
    x = 11,039,321,353,537,660/121,071,683.76
  6. Step 6: Final answer
    x = 91,180,043.18

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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.