Home / 664,009,975.20-996,014,962.80-203,947,406.40

Finding the Fourth Proportional to 664,009,975.20, 996,014,962.80 and 203,947,406.40

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Solution

The fourth proportional to 664,009,975.20, 996,014,962.80 and 203,947,406.40 is: 305,921,109.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,009,975.20 : 996,014,962.80 = 203,947,406.40 : x
  2. Step 2: Convert to fraction form
    664,009,975.20/996,014,962.80 = 203,947,406.40/x
  3. Step 3: Cross multiply
    664,009,975.20x = 996,014,962.80 × 203,947,406.40
  4. Step 4: Simplify right side
    664,009,975.20x = 203,134,668,398,652,480
  5. Step 5: Solve for x
    x = 203,134,668,398,652,480/664,009,975.20
  6. Step 6: Final answer
    x = 305,921,109.60

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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.