Home / 839,952,003.20-1,259,928,004.80-517,017,833.60

Finding the Fourth Proportional to 839,952,003.20, 1,259,928,004.80 and 517,017,833.60

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Solution

The fourth proportional to 839,952,003.20, 1,259,928,004.80 and 517,017,833.60 is: 775,526,750.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,952,003.20 : 1,259,928,004.80 = 517,017,833.60 : x
  2. Step 2: Convert to fraction form
    839,952,003.20/1,259,928,004.80 = 517,017,833.60/x
  3. Step 3: Cross multiply
    839,952,003.20x = 1,259,928,004.80 × 517,017,833.60
  4. Step 4: Simplify right side
    839,952,003.20x = 651,405,247,533,666,432
  5. Step 5: Solve for x
    x = 651,405,247,533,666,432/839,952,003.20
  6. Step 6: Final answer
    x = 775,526,750.40

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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.