Home / 20,685,345.84-31,017,637.80-12,052,236.24

Finding the Fourth Proportional to 20,685,345.84, 31,017,637.80 and 12,052,236.24

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Solution

The fourth proportional to 20,685,345.84, 31,017,637.80 and 12,052,236.24 is: 18,072,305.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,685,345.84 : 31,017,637.80 = 12,052,236.24 : x
  2. Step 2: Convert to fraction form
    20,685,345.84/31,017,637.80 = 12,052,236.24/x
  3. Step 3: Cross multiply
    20,685,345.84x = 31,017,637.80 × 12,052,236.24
  4. Step 4: Simplify right side
    20,685,345.84x = 373,831,898,372,353.88
  5. Step 5: Solve for x
    x = 373,831,898,372,353.88/20,685,345.84
  6. Step 6: Final answer
    x = 18,072,305.93

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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.