Home / 100,623,838.85-138,861,367.85-57,166,159.49

Finding the Fourth Proportional to 100,623,838.85, 138,861,367.85 and 57,166,159.49

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Solution

The fourth proportional to 100,623,838.85, 138,861,367.85 and 57,166,159.49 is: 78,889,567.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,623,838.85 : 138,861,367.85 = 57,166,159.49 : x
  2. Step 2: Convert to fraction form
    100,623,838.85/138,861,367.85 = 57,166,159.49/x
  3. Step 3: Cross multiply
    100,623,838.85x = 138,861,367.85 × 57,166,159.49
  4. Step 4: Simplify right side
    100,623,838.85x = 7,938,171,100,961,266
  5. Step 5: Solve for x
    x = 7,938,171,100,961,266/100,623,838.85
  6. Step 6: Final answer
    x = 78,889,567.24

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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.