Home / 43,878,815.60-65,818,223.40-21,203,999.60

Finding the Fourth Proportional to 43,878,815.60, 65,818,223.40 and 21,203,999.60

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Solution

The fourth proportional to 43,878,815.60, 65,818,223.40 and 21,203,999.60 is: 31,805,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,878,815.60 : 65,818,223.40 = 21,203,999.60 : x
  2. Step 2: Convert to fraction form
    43,878,815.60/65,818,223.40 = 21,203,999.60/x
  3. Step 3: Cross multiply
    43,878,815.60x = 65,818,223.40 × 21,203,999.60
  4. Step 4: Simplify right side
    43,878,815.60x = 1,395,609,582,646,310.75
  5. Step 5: Solve for x
    x = 1,395,609,582,646,310.75/43,878,815.60
  6. Step 6: Final answer
    x = 31,805,999.40

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1.5x scale

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.