Home / 126,792,021.80-190,188,032.70-118,225,980.20

Finding the Fourth Proportional to 126,792,021.80, 190,188,032.70 and 118,225,980.20

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Solution

The fourth proportional to 126,792,021.80, 190,188,032.70 and 118,225,980.20 is: 177,338,970.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,792,021.80 : 190,188,032.70 = 118,225,980.20 : x
  2. Step 2: Convert to fraction form
    126,792,021.80/190,188,032.70 = 118,225,980.20/x
  3. Step 3: Cross multiply
    126,792,021.80x = 190,188,032.70 × 118,225,980.20
  4. Step 4: Simplify right side
    126,792,021.80x = 22,485,166,588,267,152
  5. Step 5: Solve for x
    x = 22,485,166,588,267,152/126,792,021.80
  6. Step 6: Final answer
    x = 177,338,970.30

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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.