Home / 19,907,920.80-29,839,762.80-10,938,909.60

Finding the Fourth Proportional to 19,907,920.80, 29,839,762.80 and 10,938,909.60

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Solution

The fourth proportional to 19,907,920.80, 29,839,762.80 and 10,938,909.60 is: 16,396,210.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,907,920.80 : 29,839,762.80 = 10,938,909.60 : x
  2. Step 2: Convert to fraction form
    19,907,920.80/29,839,762.80 = 10,938,909.60/x
  3. Step 3: Cross multiply
    19,907,920.80x = 29,839,762.80 × 10,938,909.60
  4. Step 4: Simplify right side
    19,907,920.80x = 326,414,467,754,642.88
  5. Step 5: Solve for x
    x = 326,414,467,754,642.88/19,907,920.80
  6. Step 6: Final answer
    x = 16,396,210.89

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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.