Home / 18,118,904.20-25,004,087.93-9,970,142.20

Finding the Fourth Proportional to 18,118,904.20, 25,004,087.93 and 9,970,142.20

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Solution

The fourth proportional to 18,118,904.20, 25,004,087.93 and 9,970,142.20 is: 13,758,796.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118,904.20 : 25,004,087.93 = 9,970,142.20 : x
  2. Step 2: Convert to fraction form
    18,118,904.20/25,004,087.93 = 9,970,142.20/x
  3. Step 3: Cross multiply
    18,118,904.20x = 25,004,087.93 × 9,970,142.20
  4. Step 4: Simplify right side
    18,118,904.20x = 249,294,312,243,403.62
  5. Step 5: Solve for x
    x = 249,294,312,243,403.62/18,118,904.20
  6. Step 6: Final answer
    x = 13,758,796.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.