Home / 21,361,516.74-29,478,766.95-11,572,147.53

Finding the Fourth Proportional to 21,361,516.74, 29,478,766.95 and 11,572,147.53

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Solution

The fourth proportional to 21,361,516.74, 29,478,766.95 and 11,572,147.53 is: 15,969,495.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,361,516.74 : 29,478,766.95 = 11,572,147.53 : x
  2. Step 2: Convert to fraction form
    21,361,516.74/29,478,766.95 = 11,572,147.53/x
  3. Step 3: Cross multiply
    21,361,516.74x = 29,478,766.95 × 11,572,147.53
  4. Step 4: Simplify right side
    21,361,516.74x = 341,132,640,147,888.12
  5. Step 5: Solve for x
    x = 341,132,640,147,888.12/21,361,516.74
  6. Step 6: Final answer
    x = 15,969,495.25

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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.