Home / 81,913,683.69-122,888,852.60-30,796,145.37

Finding the Fourth Proportional to 81,913,683.69, 122,888,852.60 and 30,796,145.37

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Solution

The fourth proportional to 81,913,683.69, 122,888,852.60 and 30,796,145.37 is: 46,201,108.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,913,683.69 : 122,888,852.60 = 30,796,145.37 : x
  2. Step 2: Convert to fraction form
    81,913,683.69/122,888,852.60 = 30,796,145.37/x
  3. Step 3: Cross multiply
    81,913,683.69x = 122,888,852.60 × 30,796,145.37
  4. Step 4: Simplify right side
    81,913,683.69x = 3,784,502,968,868,122
  5. Step 5: Solve for x
    x = 3,784,502,968,868,122/81,913,683.69
  6. Step 6: Final answer
    x = 46,201,108.27

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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.