Home / 121,502,419.74-167,673,783.78-65,747,840.67

Finding the Fourth Proportional to 121,502,419.74, 167,673,783.78 and 65,747,840.67

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Solution

The fourth proportional to 121,502,419.74, 167,673,783.78 and 65,747,840.67 is: 90,732,260.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,502,419.74 : 167,673,783.78 = 65,747,840.67 : x
  2. Step 2: Convert to fraction form
    121,502,419.74/167,673,783.78 = 65,747,840.67/x
  3. Step 3: Cross multiply
    121,502,419.74x = 167,673,783.78 × 65,747,840.67
  4. Step 4: Simplify right side
    121,502,419.74x = 11,024,189,220,503,470
  5. Step 5: Solve for x
    x = 11,024,189,220,503,470/121,502,419.74
  6. Step 6: Final answer
    x = 90,732,260.68

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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.