Home / 143,039,800.20-214,410,401.10-78,243,947.40

Finding the Fourth Proportional to 143,039,800.20, 214,410,401.10 and 78,243,947.40

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Solution

The fourth proportional to 143,039,800.20, 214,410,401.10 and 78,243,947.40 is: 117,284,253.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,039,800.20 : 214,410,401.10 = 78,243,947.40 : x
  2. Step 2: Convert to fraction form
    143,039,800.20/214,410,401.10 = 78,243,947.40/x
  3. Step 3: Cross multiply
    143,039,800.20x = 214,410,401.10 × 78,243,947.40
  4. Step 4: Simplify right side
    143,039,800.20x = 16,776,316,145,681,302
  5. Step 5: Solve for x
    x = 16,776,316,145,681,302/143,039,800.20
  6. Step 6: Final answer
    x = 117,284,253.21

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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.