Home / 66,878,946-100,335,273.48-19,009,890

Finding the Fourth Proportional to 66,878,946, 100,335,273.48 and 19,009,890

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Solution

The fourth proportional to 66,878,946, 100,335,273.48 and 19,009,890 is: 28,519,625.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,878,946 : 100,335,273.48 = 19,009,890 : x
  2. Step 2: Convert to fraction form
    66,878,946/100,335,273.48 = 19,009,890/x
  3. Step 3: Cross multiply
    66,878,946x = 100,335,273.48 × 19,009,890
  4. Step 4: Simplify right side
    66,878,946x = 1,907,362,511,974,717.25
  5. Step 5: Solve for x
    x = 1,907,362,511,974,717.25/66,878,946
  6. Step 6: Final answer
    x = 28,519,625.77

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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.