Home / 165,685,638.21-248,528,450.07-157,400,694.45

Finding the Fourth Proportional to 165,685,638.21, 248,528,450.07 and 157,400,694.45

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Solution

The fourth proportional to 165,685,638.21, 248,528,450.07 and 157,400,694.45 is: 236,101,034.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,685,638.21 : 248,528,450.07 = 157,400,694.45 : x
  2. Step 2: Convert to fraction form
    165,685,638.21/248,528,450.07 = 157,400,694.45/x
  3. Step 3: Cross multiply
    165,685,638.21x = 248,528,450.07 × 157,400,694.45
  4. Step 4: Simplify right side
    165,685,638.21x = 39,118,550,631,600,144
  5. Step 5: Solve for x
    x = 39,118,550,631,600,144/165,685,638.21
  6. Step 6: Final answer
    x = 236,101,034.80

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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.