Home / 111,685,813.40-167,528,720.10-82,987,999.40

Finding the Fourth Proportional to 111,685,813.40, 167,528,720.10 and 82,987,999.40

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Solution

The fourth proportional to 111,685,813.40, 167,528,720.10 and 82,987,999.40 is: 124,481,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,685,813.40 : 167,528,720.10 = 82,987,999.40 : x
  2. Step 2: Convert to fraction form
    111,685,813.40/167,528,720.10 = 82,987,999.40/x
  3. Step 3: Cross multiply
    111,685,813.40x = 167,528,720.10 × 82,987,999.40
  4. Step 4: Simplify right side
    111,685,813.40x = 13,902,873,323,141,568
  5. Step 5: Solve for x
    x = 13,902,873,323,141,568/111,685,813.40
  6. Step 6: Final answer
    x = 124,481,999.10

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1.5x scale

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.