Home / 439,872,511.20-659,808,766.80-437,185,125.60

Finding the Fourth Proportional to 439,872,511.20, 659,808,766.80 and 437,185,125.60

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Solution

The fourth proportional to 439,872,511.20, 659,808,766.80 and 437,185,125.60 is: 655,777,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,872,511.20 : 659,808,766.80 = 437,185,125.60 : x
  2. Step 2: Convert to fraction form
    439,872,511.20/659,808,766.80 = 437,185,125.60/x
  3. Step 3: Cross multiply
    439,872,511.20x = 659,808,766.80 × 437,185,125.60
  4. Step 4: Simplify right side
    439,872,511.20x = 288,458,578,585,439,104
  5. Step 5: Solve for x
    x = 288,458,578,585,439,104/439,872,511.20
  6. Step 6: Final answer
    x = 655,777,688.40

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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.