Home / 78,801,991.02-118,275,647.94-39,967,698.24

Finding the Fourth Proportional to 78,801,991.02, 118,275,647.94 and 39,967,698.24

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Solution

The fourth proportional to 78,801,991.02, 118,275,647.94 and 39,967,698.24 is: 59,988,400.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,801,991.02 : 118,275,647.94 = 39,967,698.24 : x
  2. Step 2: Convert to fraction form
    78,801,991.02/118,275,647.94 = 39,967,698.24/x
  3. Step 3: Cross multiply
    78,801,991.02x = 118,275,647.94 × 39,967,698.24
  4. Step 4: Simplify right side
    78,801,991.02x = 4,727,205,406,006,398
  5. Step 5: Solve for x
    x = 4,727,205,406,006,398/78,801,991.02
  6. Step 6: Final answer
    x = 59,988,400.61

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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.