Home / 76,494,813.56-105,561,832.93-42,547,143.65

Finding the Fourth Proportional to 76,494,813.56, 105,561,832.93 and 42,547,143.65

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Solution

The fourth proportional to 76,494,813.56, 105,561,832.93 and 42,547,143.65 is: 58,714,496.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,494,813.56 : 105,561,832.93 = 42,547,143.65 : x
  2. Step 2: Convert to fraction form
    76,494,813.56/105,561,832.93 = 42,547,143.65/x
  3. Step 3: Cross multiply
    76,494,813.56x = 105,561,832.93 × 42,547,143.65
  4. Step 4: Simplify right side
    76,494,813.56x = 4,491,354,470,006,121.50
  5. Step 5: Solve for x
    x = 4,491,354,470,006,121.50/76,494,813.56
  6. Step 6: Final answer
    x = 58,714,496.59

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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.