Home / 74,796,278.40-112,194,417.60-66,734,121.60

Finding the Fourth Proportional to 74,796,278.40, 112,194,417.60 and 66,734,121.60

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Solution

The fourth proportional to 74,796,278.40, 112,194,417.60 and 66,734,121.60 is: 100,101,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,796,278.40 : 112,194,417.60 = 66,734,121.60 : x
  2. Step 2: Convert to fraction form
    74,796,278.40/112,194,417.60 = 66,734,121.60/x
  3. Step 3: Cross multiply
    74,796,278.40x = 112,194,417.60 × 66,734,121.60
  4. Step 4: Simplify right side
    74,796,278.40x = 7,487,195,906,959,580
  5. Step 5: Solve for x
    x = 7,487,195,906,959,580/74,796,278.40
  6. Step 6: Final answer
    x = 100,101,182.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.