Home / 1,320,113,644.80-1,980,170,834.12-490,958,951.92

Finding the Fourth Proportional to 1,320,113,644.80, 1,980,170,834.12 and 490,958,951.92

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Solution

The fourth proportional to 1,320,113,644.80, 1,980,170,834.12 and 490,958,951.92 is: 736,438,564.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,113,644.80 : 1,980,170,834.12 = 490,958,951.92 : x
  2. Step 2: Convert to fraction form
    1,320,113,644.80/1,980,170,834.12 = 490,958,951.92/x
  3. Step 3: Cross multiply
    1,320,113,644.80x = 1,980,170,834.12 × 490,958,951.92
  4. Step 4: Simplify right side
    1,320,113,644.80x = 972,182,597,342,107,392
  5. Step 5: Solve for x
    x = 972,182,597,342,107,392/1,320,113,644.80
  6. Step 6: Final answer
    x = 736,438,564.34

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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.