Home / 402,409,814.70-603,614,722.05-143,916,912.30

Finding the Fourth Proportional to 402,409,814.70, 603,614,722.05 and 143,916,912.30

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Solution

The fourth proportional to 402,409,814.70, 603,614,722.05 and 143,916,912.30 is: 215,875,368.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,409,814.70 : 603,614,722.05 = 143,916,912.30 : x
  2. Step 2: Convert to fraction form
    402,409,814.70/603,614,722.05 = 143,916,912.30/x
  3. Step 3: Cross multiply
    402,409,814.70x = 603,614,722.05 × 143,916,912.30
  4. Step 4: Simplify right side
    402,409,814.70x = 86,870,367,016,258,720
  5. Step 5: Solve for x
    x = 86,870,367,016,258,720/402,409,814.70
  6. Step 6: Final answer
    x = 215,875,368.45

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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.