Home / 1,321,537,354.80-1,980,520,336.98-503,203,245.36

Finding the Fourth Proportional to 1,321,537,354.80, 1,980,520,336.98 and 503,203,245.36

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Solution

The fourth proportional to 1,321,537,354.80, 1,980,520,336.98 and 503,203,245.36 is: 754,124,926.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,537,354.80 : 1,980,520,336.98 = 503,203,245.36 : x
  2. Step 2: Convert to fraction form
    1,321,537,354.80/1,980,520,336.98 = 503,203,245.36/x
  3. Step 3: Cross multiply
    1,321,537,354.80x = 1,980,520,336.98 × 503,203,245.36
  4. Step 4: Simplify right side
    1,321,537,354.80x = 996,604,261,069,816,832
  5. Step 5: Solve for x
    x = 996,604,261,069,816,832/1,321,537,354.80
  6. Step 6: Final answer
    x = 754,124,926.89

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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.