Home / 788,045,008.80-1,181,960,204.40-205,824,784.80

Finding the Fourth Proportional to 788,045,008.80, 1,181,960,204.40 and 205,824,784.80

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Solution

The fourth proportional to 788,045,008.80, 1,181,960,204.40 and 205,824,784.80 is: 308,709,149.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,045,008.80 : 1,181,960,204.40 = 205,824,784.80 : x
  2. Step 2: Convert to fraction form
    788,045,008.80/1,181,960,204.40 = 205,824,784.80/x
  3. Step 3: Cross multiply
    788,045,008.80x = 1,181,960,204.40 × 205,824,784.80
  4. Step 4: Simplify right side
    788,045,008.80x = 243,276,704,712,794,048
  5. Step 5: Solve for x
    x = 243,276,704,712,794,048/788,045,008.80
  6. Step 6: Final answer
    x = 308,709,149.85

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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.