Home / 43,939,773.60-65,928,322.80-21,208,970.40

Finding the Fourth Proportional to 43,939,773.60, 65,928,322.80 and 21,208,970.40

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Solution

The fourth proportional to 43,939,773.60, 65,928,322.80 and 21,208,970.40 is: 31,822,463.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,939,773.60 : 65,928,322.80 = 21,208,970.40 : x
  2. Step 2: Convert to fraction form
    43,939,773.60/65,928,322.80 = 21,208,970.40/x
  3. Step 3: Cross multiply
    43,939,773.60x = 65,928,322.80 × 21,208,970.40
  4. Step 4: Simplify right side
    43,939,773.60x = 1,398,271,846,786,845
  5. Step 5: Solve for x
    x = 1,398,271,846,786,845/43,939,773.60
  6. Step 6: Final answer
    x = 31,822,463.62

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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.