Home / 93,073,979.42-139,429,344.52-72,507,399.54

Finding the Fourth Proportional to 93,073,979.42, 139,429,344.52 and 72,507,399.54

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Solution

The fourth proportional to 93,073,979.42, 139,429,344.52 and 72,507,399.54 is: 108,619,608.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,073,979.42 : 139,429,344.52 = 72,507,399.54 : x
  2. Step 2: Convert to fraction form
    93,073,979.42/139,429,344.52 = 72,507,399.54/x
  3. Step 3: Cross multiply
    93,073,979.42x = 139,429,344.52 × 72,507,399.54
  4. Step 4: Simplify right side
    93,073,979.42x = 10,109,659,190,711,952
  5. Step 5: Solve for x
    x = 10,109,659,190,711,952/93,073,979.42
  6. Step 6: Final answer
    x = 108,619,608.33

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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.