Home / 28,906,681.36-43,371,370.67-12,721,279.03

Finding the Fourth Proportional to 28,906,681.36, 43,371,370.67 and 12,721,279.03

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Solution

The fourth proportional to 28,906,681.36, 43,371,370.67 and 12,721,279.03 is: 19,086,912.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,906,681.36 : 43,371,370.67 = 12,721,279.03 : x
  2. Step 2: Convert to fraction form
    28,906,681.36/43,371,370.67 = 12,721,279.03/x
  3. Step 3: Cross multiply
    28,906,681.36x = 43,371,370.67 × 12,721,279.03
  4. Step 4: Simplify right side
    28,906,681.36x = 551,739,308,106,150.44
  5. Step 5: Solve for x
    x = 551,739,308,106,150.44/28,906,681.36
  6. Step 6: Final answer
    x = 19,086,912.86

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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.