Home / 260,736,418.80-391,104,628.20-139,804,066.80

Finding the Fourth Proportional to 260,736,418.80, 391,104,628.20 and 139,804,066.80

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Solution

The fourth proportional to 260,736,418.80, 391,104,628.20 and 139,804,066.80 is: 209,706,100.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,736,418.80 : 391,104,628.20 = 139,804,066.80 : x
  2. Step 2: Convert to fraction form
    260,736,418.80/391,104,628.20 = 139,804,066.80/x
  3. Step 3: Cross multiply
    260,736,418.80x = 391,104,628.20 × 139,804,066.80
  4. Step 4: Simplify right side
    260,736,418.80x = 54,678,017,566,661,968
  5. Step 5: Solve for x
    x = 54,678,017,566,661,968/260,736,418.80
  6. Step 6: Final answer
    x = 209,706,100.20

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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.