Home / 137,595,204.78-189,878,979.93-74,869,186.65

Finding the Fourth Proportional to 137,595,204.78, 189,878,979.93 and 74,869,186.65

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Solution

The fourth proportional to 137,595,204.78, 189,878,979.93 and 74,869,186.65 is: 103,318,170.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,595,204.78 : 189,878,979.93 = 74,869,186.65 : x
  2. Step 2: Convert to fraction form
    137,595,204.78/189,878,979.93 = 74,869,186.65/x
  3. Step 3: Cross multiply
    137,595,204.78x = 189,878,979.93 × 74,869,186.65
  4. Step 4: Simplify right side
    137,595,204.78x = 14,216,084,789,290,776
  5. Step 5: Solve for x
    x = 14,216,084,789,290,776/137,595,204.78
  6. Step 6: Final answer
    x = 103,318,170.22

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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.