Home / 487,240,169.40-730,860,254.10-378,401,052.60

Finding the Fourth Proportional to 487,240,169.40, 730,860,254.10 and 378,401,052.60

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Solution

The fourth proportional to 487,240,169.40, 730,860,254.10 and 378,401,052.60 is: 567,601,578.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,240,169.40 : 730,860,254.10 = 378,401,052.60 : x
  2. Step 2: Convert to fraction form
    487,240,169.40/730,860,254.10 = 378,401,052.60/x
  3. Step 3: Cross multiply
    487,240,169.40x = 730,860,254.10 × 378,401,052.60
  4. Step 4: Simplify right side
    487,240,169.40x = 276,558,289,454,943,488
  5. Step 5: Solve for x
    x = 276,558,289,454,943,488/487,240,169.40
  6. Step 6: Final answer
    x = 567,601,578.90

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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.