Home / 73,021,802.58-100,770,112-39,984,141.32

Finding the Fourth Proportional to 73,021,802.58, 100,770,112 and 39,984,141.32

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Solution

The fourth proportional to 73,021,802.58, 100,770,112 and 39,984,141.32 is: 55,178,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,021,802.58 : 100,770,112 = 39,984,141.32 : x
  2. Step 2: Convert to fraction form
    73,021,802.58/100,770,112 = 39,984,141.32/x
  3. Step 3: Cross multiply
    73,021,802.58x = 100,770,112 × 39,984,141.32
  4. Step 4: Simplify right side
    73,021,802.58x = 4,029,206,399,040,228
  5. Step 5: Solve for x
    x = 4,029,206,399,040,228/73,021,802.58
  6. Step 6: Final answer
    x = 55,178,128.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.