Home / 1,047,433,142.88-1,571,092,761.36-320,421,854.88

Finding the Fourth Proportional to 1,047,433,142.88, 1,571,092,761.36 and 320,421,854.88

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Solution

The fourth proportional to 1,047,433,142.88, 1,571,092,761.36 and 320,421,854.88 is: 480,615,359.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,433,142.88 : 1,571,092,761.36 = 320,421,854.88 : x
  2. Step 2: Convert to fraction form
    1,047,433,142.88/1,571,092,761.36 = 320,421,854.88/x
  3. Step 3: Cross multiply
    1,047,433,142.88x = 1,571,092,761.36 × 320,421,854.88
  4. Step 4: Simplify right side
    1,047,433,142.88x = 503,412,456,783,512,320
  5. Step 5: Solve for x
    x = 503,412,456,783,512,320/1,047,433,142.88
  6. Step 6: Final answer
    x = 480,615,359.75

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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.