Home / 189,541,012.36-261,521,607.54-115,200,275.08

Finding the Fourth Proportional to 189,541,012.36, 261,521,607.54 and 115,200,275.08

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Solution

The fourth proportional to 189,541,012.36, 261,521,607.54 and 115,200,275.08 is: 158,949,035.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,541,012.36 : 261,521,607.54 = 115,200,275.08 : x
  2. Step 2: Convert to fraction form
    189,541,012.36/261,521,607.54 = 115,200,275.08/x
  3. Step 3: Cross multiply
    189,541,012.36x = 261,521,607.54 × 115,200,275.08
  4. Step 4: Simplify right side
    189,541,012.36x = 30,127,361,127,971,800
  5. Step 5: Solve for x
    x = 30,127,361,127,971,800/189,541,012.36
  6. Step 6: Final answer
    x = 158,949,035.64

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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.