Home / 70,440,005.67-105,660,821.97-21,256,285.11

Finding the Fourth Proportional to 70,440,005.67, 105,660,821.97 and 21,256,285.11

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Solution

The fourth proportional to 70,440,005.67, 105,660,821.97 and 21,256,285.11 is: 31,884,673.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,440,005.67 : 105,660,821.97 = 21,256,285.11 : x
  2. Step 2: Convert to fraction form
    70,440,005.67/105,660,821.97 = 21,256,285.11/x
  3. Step 3: Cross multiply
    70,440,005.67x = 105,660,821.97 × 21,256,285.11
  4. Step 4: Simplify right side
    70,440,005.67x = 2,245,956,556,457,654.75
  5. Step 5: Solve for x
    x = 2,245,956,556,457,654.75/70,440,005.67
  6. Step 6: Final answer
    x = 31,884,673.14

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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.