Home / 513,216,004.80-769,824,007.20-349,957,329.60

Finding the Fourth Proportional to 513,216,004.80, 769,824,007.20 and 349,957,329.60

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Solution

The fourth proportional to 513,216,004.80, 769,824,007.20 and 349,957,329.60 is: 524,935,994.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,216,004.80 : 769,824,007.20 = 349,957,329.60 : x
  2. Step 2: Convert to fraction form
    513,216,004.80/769,824,007.20 = 349,957,329.60/x
  3. Step 3: Cross multiply
    513,216,004.80x = 769,824,007.20 × 349,957,329.60
  4. Step 4: Simplify right side
    513,216,004.80x = 269,405,553,821,683,200
  5. Step 5: Solve for x
    x = 269,405,553,821,683,200/513,216,004.80
  6. Step 6: Final answer
    x = 524,935,994.40

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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.