Home / 13,764,988.53-18,990,308.12-7,881,478.60

Finding the Fourth Proportional to 13,764,988.53, 18,990,308.12 and 7,881,478.60

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Solution

The fourth proportional to 13,764,988.53, 18,990,308.12 and 7,881,478.60 is: 10,873,362.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,764,988.53 : 18,990,308.12 = 7,881,478.60 : x
  2. Step 2: Convert to fraction form
    13,764,988.53/18,990,308.12 = 7,881,478.60/x
  3. Step 3: Cross multiply
    13,764,988.53x = 18,990,308.12 × 7,881,478.60
  4. Step 4: Simplify right side
    13,764,988.53x = 149,671,707,055,186.22
  5. Step 5: Solve for x
    x = 149,671,707,055,186.22/13,764,988.53
  6. Step 6: Final answer
    x = 10,873,362.28

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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.