Home / 28,740,735,173.80-43,111,102,760.70-21,001,064,645.80

Finding the Fourth Proportional to 28,740,735,173.80, 43,111,102,760.70 and 21,001,064,645.80

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Solution

The fourth proportional to 28,740,735,173.80, 43,111,102,760.70 and 21,001,064,645.80 is: 31,501,596,968.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,740,735,173.80 : 43,111,102,760.70 = 21,001,064,645.80 : x
  2. Step 2: Convert to fraction form
    28,740,735,173.80/43,111,102,760.70 = 21,001,064,645.80/x
  3. Step 3: Cross multiply
    28,740,735,173.80x = 43,111,102,760.70 × 21,001,064,645.80
  4. Step 4: Simplify right side
    28,740,735,173.80x = 905,379,056,029,187,440,640
  5. Step 5: Solve for x
    x = 905,379,056,029,187,440,640/28,740,735,173.80
  6. Step 6: Final answer
    x = 31,501,596,968.70

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1.5x scale

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.