Home / 138,081,266.48-190,623,790.80-100,869,762.80

Finding the Fourth Proportional to 138,081,266.48, 190,623,790.80 and 100,869,762.80

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Solution

The fourth proportional to 138,081,266.48, 190,623,790.80 and 100,869,762.80 is: 139,252,608.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,081,266.48 : 190,623,790.80 = 100,869,762.80 : x
  2. Step 2: Convert to fraction form
    138,081,266.48/190,623,790.80 = 100,869,762.80/x
  3. Step 3: Cross multiply
    138,081,266.48x = 190,623,790.80 × 100,869,762.80
  4. Step 4: Simplify right side
    138,081,266.48x = 19,228,176,562,032,824
  5. Step 5: Solve for x
    x = 19,228,176,562,032,824/138,081,266.48
  6. Step 6: Final answer
    x = 139,252,608.64

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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.