Home / 279,599,718.29-419,501,846.42-130,105,479.81

Finding the Fourth Proportional to 279,599,718.29, 419,501,846.42 and 130,105,479.81

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Solution

The fourth proportional to 279,599,718.29, 419,501,846.42 and 130,105,479.81 is: 195,205,808.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,599,718.29 : 419,501,846.42 = 130,105,479.81 : x
  2. Step 2: Convert to fraction form
    279,599,718.29/419,501,846.42 = 130,105,479.81/x
  3. Step 3: Cross multiply
    279,599,718.29x = 419,501,846.42 × 130,105,479.81
  4. Step 4: Simplify right side
    279,599,718.29x = 54,579,489,009,980,296
  5. Step 5: Solve for x
    x = 54,579,489,009,980,296/279,599,718.29
  6. Step 6: Final answer
    x = 195,205,808.30

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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.