Home / 100,623,840.85-138,861,370.61-57,166,161.49

Finding the Fourth Proportional to 100,623,840.85, 138,861,370.61 and 57,166,161.49

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Solution

The fourth proportional to 100,623,840.85, 138,861,370.61 and 57,166,161.49 is: 78,889,570.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,623,840.85 : 138,861,370.61 = 57,166,161.49 : x
  2. Step 2: Convert to fraction form
    100,623,840.85/138,861,370.61 = 57,166,161.49/x
  3. Step 3: Cross multiply
    100,623,840.85x = 138,861,370.61 × 57,166,161.49
  4. Step 4: Simplify right side
    100,623,840.85x = 7,938,171,537,014,001
  5. Step 5: Solve for x
    x = 7,938,171,537,014,001/100,623,840.85
  6. Step 6: Final answer
    x = 78,889,570.01

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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.