Home / 143,874,166.70-215,811,250.05-128,757,622.70

Finding the Fourth Proportional to 143,874,166.70, 215,811,250.05 and 128,757,622.70

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Solution

The fourth proportional to 143,874,166.70, 215,811,250.05 and 128,757,622.70 is: 193,136,434.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,874,166.70 : 215,811,250.05 = 128,757,622.70 : x
  2. Step 2: Convert to fraction form
    143,874,166.70/215,811,250.05 = 128,757,622.70/x
  3. Step 3: Cross multiply
    143,874,166.70x = 215,811,250.05 × 128,757,622.70
  4. Step 4: Simplify right side
    143,874,166.70x = 27,787,343,508,353,260
  5. Step 5: Solve for x
    x = 27,787,343,508,353,260/143,874,166.70
  6. Step 6: Final answer
    x = 193,136,434.05

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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.