Home / 783,539,268.82-1,174,017,493.09-455,092,787.59

Finding the Fourth Proportional to 783,539,268.82, 1,174,017,493.09 and 455,092,787.59

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Solution

The fourth proportional to 783,539,268.82, 1,174,017,493.09 and 455,092,787.59 is: 681,889,108.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,539,268.82 : 1,174,017,493.09 = 455,092,787.59 : x
  2. Step 2: Convert to fraction form
    783,539,268.82/1,174,017,493.09 = 455,092,787.59/x
  3. Step 3: Cross multiply
    783,539,268.82x = 1,174,017,493.09 × 455,092,787.59
  4. Step 4: Simplify right side
    783,539,268.82x = 534,286,893,605,678,912
  5. Step 5: Solve for x
    x = 534,286,893,605,678,912/783,539,268.82
  6. Step 6: Final answer
    x = 681,889,108.65

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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.