Home / 309,300,002.80-463,950,004.20-207,378,415.60

Finding the Fourth Proportional to 309,300,002.80, 463,950,004.20 and 207,378,415.60

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Solution

The fourth proportional to 309,300,002.80, 463,950,004.20 and 207,378,415.60 is: 311,067,623.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,300,002.80 : 463,950,004.20 = 207,378,415.60 : x
  2. Step 2: Convert to fraction form
    309,300,002.80/463,950,004.20 = 207,378,415.60/x
  3. Step 3: Cross multiply
    309,300,002.80x = 463,950,004.20 × 207,378,415.60
  4. Step 4: Simplify right side
    309,300,002.80x = 96,213,216,788,609,344
  5. Step 5: Solve for x
    x = 96,213,216,788,609,344/309,300,002.80
  6. Step 6: Final answer
    x = 311,067,623.40

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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.