Home / 71,328,039.48-98,434,289.88-39,968,427.78

Finding the Fourth Proportional to 71,328,039.48, 98,434,289.88 and 39,968,427.78

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Solution

The fourth proportional to 71,328,039.48, 98,434,289.88 and 39,968,427.78 is: 55,157,324.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,328,039.48 : 98,434,289.88 = 39,968,427.78 : x
  2. Step 2: Convert to fraction form
    71,328,039.48/98,434,289.88 = 39,968,427.78/x
  3. Step 3: Cross multiply
    71,328,039.48x = 98,434,289.88 × 39,968,427.78
  4. Step 4: Simplify right side
    71,328,039.48x = 3,934,263,806,144,365
  5. Step 5: Solve for x
    x = 3,934,263,806,144,365/71,328,039.48
  6. Step 6: Final answer
    x = 55,157,324.31

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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.