Home / 20,211,009.84-30,316,645.98-8,081,492.31

Finding the Fourth Proportional to 20,211,009.84, 30,316,645.98 and 8,081,492.31

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Solution

The fourth proportional to 20,211,009.84, 30,316,645.98 and 8,081,492.31 is: 12,122,290.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211,009.84 : 30,316,645.98 = 8,081,492.31 : x
  2. Step 2: Convert to fraction form
    20,211,009.84/30,316,645.98 = 8,081,492.31/x
  3. Step 3: Cross multiply
    20,211,009.84x = 30,316,645.98 × 8,081,492.31
  4. Step 4: Simplify right side
    20,211,009.84x = 245,003,741,352,362.41
  5. Step 5: Solve for x
    x = 245,003,741,352,362.41/20,211,009.84
  6. Step 6: Final answer
    x = 12,122,290.93

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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.