Home / 142,684,401.89-196,905,482.38-77,494,305.89

Finding the Fourth Proportional to 142,684,401.89, 196,905,482.38 and 77,494,305.89

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Solution

The fourth proportional to 142,684,401.89, 196,905,482.38 and 77,494,305.89 is: 106,942,689.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,684,401.89 : 196,905,482.38 = 77,494,305.89 : x
  2. Step 2: Convert to fraction form
    142,684,401.89/196,905,482.38 = 77,494,305.89/x
  3. Step 3: Cross multiply
    142,684,401.89x = 196,905,482.38 × 77,494,305.89
  4. Step 4: Simplify right side
    142,684,401.89x = 15,259,053,682,973,724
  5. Step 5: Solve for x
    x = 15,259,053,682,973,724/142,684,401.89
  6. Step 6: Final answer
    x = 106,942,689.47

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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.