Home / 143,912,457.20-198,599,190.20-77,832,954.40

Finding the Fourth Proportional to 143,912,457.20, 198,599,190.20 and 77,832,954.40

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Solution

The fourth proportional to 143,912,457.20, 198,599,190.20 and 77,832,954.40 is: 107,409,476.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,912,457.20 : 198,599,190.20 = 77,832,954.40 : x
  2. Step 2: Convert to fraction form
    143,912,457.20/198,599,190.20 = 77,832,954.40/x
  3. Step 3: Cross multiply
    143,912,457.20x = 198,599,190.20 × 77,832,954.40
  4. Step 4: Simplify right side
    143,912,457.20x = 15,457,561,714,713,528
  5. Step 5: Solve for x
    x = 15,457,561,714,713,528/143,912,457.20
  6. Step 6: Final answer
    x = 107,409,476.67

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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.