Home / 879,648,820.92-1,318,833,488.34-413,069,821.29

Finding the Fourth Proportional to 879,648,820.92, 1,318,833,488.34 and 413,069,821.29

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Solution

The fourth proportional to 879,648,820.92, 1,318,833,488.34 and 413,069,821.29 is: 619,304,318.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,648,820.92 : 1,318,833,488.34 = 413,069,821.29 : x
  2. Step 2: Convert to fraction form
    879,648,820.92/1,318,833,488.34 = 413,069,821.29/x
  3. Step 3: Cross multiply
    879,648,820.92x = 1,318,833,488.34 × 413,069,821.29
  4. Step 4: Simplify right side
    879,648,820.92x = 544,770,313,339,871,104
  5. Step 5: Solve for x
    x = 544,770,313,339,871,104/879,648,820.92
  6. Step 6: Final answer
    x = 619,304,318.25

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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.