Home / 28,740,735,172.80-43,111,102,759.20-21,001,064,644.80

Finding the Fourth Proportional to 28,740,735,172.80, 43,111,102,759.20 and 21,001,064,644.80

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Solution

The fourth proportional to 28,740,735,172.80, 43,111,102,759.20 and 21,001,064,644.80 is: 31,501,596,967.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,740,735,172.80 : 43,111,102,759.20 = 21,001,064,644.80 : x
  2. Step 2: Convert to fraction form
    28,740,735,172.80/43,111,102,759.20 = 21,001,064,644.80/x
  3. Step 3: Cross multiply
    28,740,735,172.80x = 43,111,102,759.20 × 21,001,064,644.80
  4. Step 4: Simplify right side
    28,740,735,172.80x = 905,379,055,954,574,704,640
  5. Step 5: Solve for x
    x = 905,379,055,954,574,704,640/28,740,735,172.80
  6. Step 6: Final answer
    x = 31,501,596,967.20

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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.