Home / 13,407,885.80-20,111,828.70-7,020,096.20

Finding the Fourth Proportional to 13,407,885.80, 20,111,828.70 and 7,020,096.20

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Solution

The fourth proportional to 13,407,885.80, 20,111,828.70 and 7,020,096.20 is: 10,530,144.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,407,885.80 : 20,111,828.70 = 7,020,096.20 : x
  2. Step 2: Convert to fraction form
    13,407,885.80/20,111,828.70 = 7,020,096.20/x
  3. Step 3: Cross multiply
    13,407,885.80x = 20,111,828.70 × 7,020,096.20
  4. Step 4: Simplify right side
    13,407,885.80x = 141,186,972,231,920.94
  5. Step 5: Solve for x
    x = 141,186,972,231,920.94/13,407,885.80
  6. Step 6: Final answer
    x = 10,530,144.30

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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.