Home / 42,065,375.80-63,103,968.60-13,308,512.80

Finding the Fourth Proportional to 42,065,375.80, 63,103,968.60 and 13,308,512.80

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Solution

The fourth proportional to 42,065,375.80, 63,103,968.60 and 13,308,512.80 is: 19,964,637.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,065,375.80 : 63,103,968.60 = 13,308,512.80 : x
  2. Step 2: Convert to fraction form
    42,065,375.80/63,103,968.60 = 13,308,512.80/x
  3. Step 3: Cross multiply
    42,065,375.80x = 63,103,968.60 × 13,308,512.80
  4. Step 4: Simplify right side
    42,065,375.80x = 839,819,973,843,898.12
  5. Step 5: Solve for x
    x = 839,819,973,843,898.12/42,065,375.80
  6. Step 6: Final answer
    x = 19,964,637.37

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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.