Home / 121,624,122.78-182,459,656.13-39,720,982.35

Finding the Fourth Proportional to 121,624,122.78, 182,459,656.13 and 39,720,982.35

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Solution

The fourth proportional to 121,624,122.78, 182,459,656.13 and 39,720,982.35 is: 59,589,139.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,624,122.78 : 182,459,656.13 = 39,720,982.35 : x
  2. Step 2: Convert to fraction form
    121,624,122.78/182,459,656.13 = 39,720,982.35/x
  3. Step 3: Cross multiply
    121,624,122.78x = 182,459,656.13 × 39,720,982.35
  4. Step 4: Simplify right side
    121,624,122.78x = 7,247,476,780,409,712
  5. Step 5: Solve for x
    x = 7,247,476,780,409,712/121,624,122.78
  6. Step 6: Final answer
    x = 59,589,139.18

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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.