Home / 388,346,940.80-582,520,411.20-349,379,849.60

Finding the Fourth Proportional to 388,346,940.80, 582,520,411.20 and 349,379,849.60

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Solution

The fourth proportional to 388,346,940.80, 582,520,411.20 and 349,379,849.60 is: 524,069,774.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,346,940.80 : 582,520,411.20 = 349,379,849.60 : x
  2. Step 2: Convert to fraction form
    388,346,940.80/582,520,411.20 = 349,379,849.60/x
  3. Step 3: Cross multiply
    388,346,940.80x = 582,520,411.20 × 349,379,849.60
  4. Step 4: Simplify right side
    388,346,940.80x = 203,520,893,653,986,176
  5. Step 5: Solve for x
    x = 203,520,893,653,986,176/388,346,940.80
  6. Step 6: Final answer
    x = 524,069,774.40

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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.