Home / 15,301,283.14-21,115,012.80-8,424,480.34

Finding the Fourth Proportional to 15,301,283.14, 21,115,012.80 and 8,424,480.34

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Solution

The fourth proportional to 15,301,283.14, 21,115,012.80 and 8,424,480.34 is: 11,625,365.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,301,283.14 : 21,115,012.80 = 8,424,480.34 : x
  2. Step 2: Convert to fraction form
    15,301,283.14/21,115,012.80 = 8,424,480.34/x
  3. Step 3: Cross multiply
    15,301,283.14x = 21,115,012.80 × 8,424,480.34
  4. Step 4: Simplify right side
    15,301,283.14x = 177,883,010,212,448.34
  5. Step 5: Solve for x
    x = 177,883,010,212,448.34/15,301,283.14
  6. Step 6: Final answer
    x = 11,625,365.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.