Home / 165,329,153,571.72-247,792,257,307.98-85,696,801,169.16

Finding the Fourth Proportional to 165,329,153,571.72, 247,792,257,307.98 and 85,696,801,169.16

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Solution

The fourth proportional to 165,329,153,571.72, 247,792,257,307.98 and 85,696,801,169.16 is: 128,440,770,106.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,329,153,571.72 : 247,792,257,307.98 = 85,696,801,169.16 : x
  2. Step 2: Convert to fraction form
    165,329,153,571.72/247,792,257,307.98 = 85,696,801,169.16/x
  3. Step 3: Cross multiply
    165,329,153,571.72x = 247,792,257,307.98 × 85,696,801,169.16
  4. Step 4: Simplify right side
    165,329,153,571.72x = 21,235,003,805,779,296,780,288
  5. Step 5: Solve for x
    x = 21,235,003,805,779,296,780,288/165,329,153,571.72
  6. Step 6: Final answer
    x = 128,440,770,106.33

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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.