Home / 920,201,217.20-1,380,301,825.80-531,824,134.40

Finding the Fourth Proportional to 920,201,217.20, 1,380,301,825.80 and 531,824,134.40

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Solution

The fourth proportional to 920,201,217.20, 1,380,301,825.80 and 531,824,134.40 is: 797,736,201.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,201,217.20 : 1,380,301,825.80 = 531,824,134.40 : x
  2. Step 2: Convert to fraction form
    920,201,217.20/1,380,301,825.80 = 531,824,134.40/x
  3. Step 3: Cross multiply
    920,201,217.20x = 1,380,301,825.80 × 531,824,134.40
  4. Step 4: Simplify right side
    920,201,217.20x = 734,077,823,716,824,576
  5. Step 5: Solve for x
    x = 734,077,823,716,824,576/920,201,217.20
  6. Step 6: Final answer
    x = 797,736,201.60

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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.