Home / 874,800,438.40-1,312,389,614.40-261,446,665.60

Finding the Fourth Proportional to 874,800,438.40, 1,312,389,614.40 and 261,446,665.60

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Solution

The fourth proportional to 874,800,438.40, 1,312,389,614.40 and 261,446,665.60 is: 392,226,470.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,800,438.40 : 1,312,389,614.40 = 261,446,665.60 : x
  2. Step 2: Convert to fraction form
    874,800,438.40/1,312,389,614.40 = 261,446,665.60/x
  3. Step 3: Cross multiply
    874,800,438.40x = 1,312,389,614.40 × 261,446,665.60
  4. Step 4: Simplify right side
    874,800,438.40x = 343,119,888,652,949,760
  5. Step 5: Solve for x
    x = 343,119,888,652,949,760/874,800,438.40
  6. Step 6: Final answer
    x = 392,226,470.85

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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.