Home / 309,300,011.80-463,950,017.70-207,378,424.60

Finding the Fourth Proportional to 309,300,011.80, 463,950,017.70 and 207,378,424.60

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Solution

The fourth proportional to 309,300,011.80, 463,950,017.70 and 207,378,424.60 is: 311,067,636.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,300,011.80 : 463,950,017.70 = 207,378,424.60 : x
  2. Step 2: Convert to fraction form
    309,300,011.80/463,950,017.70 = 207,378,424.60/x
  3. Step 3: Cross multiply
    309,300,011.80x = 463,950,017.70 × 207,378,424.60
  4. Step 4: Simplify right side
    309,300,011.80x = 96,213,223,763,768,112
  5. Step 5: Solve for x
    x = 96,213,223,763,768,112/309,300,011.80
  6. Step 6: Final answer
    x = 311,067,636.90

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1.5x scale

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.