Home / 210,984,078.80-316,324,975.80-81,480,846.80

Finding the Fourth Proportional to 210,984,078.80, 316,324,975.80 and 81,480,846.80

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Solution

The fourth proportional to 210,984,078.80, 316,324,975.80 and 81,480,846.80 is: 122,162,899.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,984,078.80 : 316,324,975.80 = 81,480,846.80 : x
  2. Step 2: Convert to fraction form
    210,984,078.80/316,324,975.80 = 81,480,846.80/x
  3. Step 3: Cross multiply
    210,984,078.80x = 316,324,975.80 × 81,480,846.80
  4. Step 4: Simplify right side
    210,984,078.80x = 25,774,426,892,173,508
  5. Step 5: Solve for x
    x = 25,774,426,892,173,508/210,984,078.80
  6. Step 6: Final answer
    x = 122,162,899.87

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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.