Home / 879,536,642.69-1,319,467,155.62-289,360,098.11

Finding the Fourth Proportional to 879,536,642.69, 1,319,467,155.62 and 289,360,098.11

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Solution

The fourth proportional to 879,536,642.69, 1,319,467,155.62 and 289,360,098.11 is: 434,093,506.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,536,642.69 : 1,319,467,155.62 = 289,360,098.11 : x
  2. Step 2: Convert to fraction form
    879,536,642.69/1,319,467,155.62 = 289,360,098.11/x
  3. Step 3: Cross multiply
    879,536,642.69x = 1,319,467,155.62 × 289,360,098.11
  4. Step 4: Simplify right side
    879,536,642.69x = 381,801,145,604,977,728
  5. Step 5: Solve for x
    x = 381,801,145,604,977,728/879,536,642.69
  6. Step 6: Final answer
    x = 434,093,506.82

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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.