Home / 920,201,101.20-1,380,301,651.80-531,824,018.40

Finding the Fourth Proportional to 920,201,101.20, 1,380,301,651.80 and 531,824,018.40

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Solution

The fourth proportional to 920,201,101.20, 1,380,301,651.80 and 531,824,018.40 is: 797,736,027.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,201,101.20 : 1,380,301,651.80 = 531,824,018.40 : x
  2. Step 2: Convert to fraction form
    920,201,101.20/1,380,301,651.80 = 531,824,018.40/x
  3. Step 3: Cross multiply
    920,201,101.20x = 1,380,301,651.80 × 531,824,018.40
  4. Step 4: Simplify right side
    920,201,101.20x = 734,077,571,064,433,536
  5. Step 5: Solve for x
    x = 734,077,571,064,433,536/920,201,101.20
  6. Step 6: Final answer
    x = 797,736,027.60

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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.