Home / 76,172,979.66-105,150,888.42-51,426,683.64

Finding the Fourth Proportional to 76,172,979.66, 105,150,888.42 and 51,426,683.64

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Solution

The fourth proportional to 76,172,979.66, 105,150,888.42 and 51,426,683.64 is: 70,990,546.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,172,979.66 : 105,150,888.42 = 51,426,683.64 : x
  2. Step 2: Convert to fraction form
    76,172,979.66/105,150,888.42 = 51,426,683.64/x
  3. Step 3: Cross multiply
    76,172,979.66x = 105,150,888.42 × 51,426,683.64
  4. Step 4: Simplify right side
    76,172,979.66x = 5,407,561,473,240,280
  5. Step 5: Solve for x
    x = 5,407,561,473,240,280/76,172,979.66
  6. Step 6: Final answer
    x = 70,990,546.74

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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.