Home / 108,872,240.80-163,308,361.20-74,384,125.60

Finding the Fourth Proportional to 108,872,240.80, 163,308,361.20 and 74,384,125.60

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Solution

The fourth proportional to 108,872,240.80, 163,308,361.20 and 74,384,125.60 is: 111,576,188.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,872,240.80 : 163,308,361.20 = 74,384,125.60 : x
  2. Step 2: Convert to fraction form
    108,872,240.80/163,308,361.20 = 74,384,125.60/x
  3. Step 3: Cross multiply
    108,872,240.80x = 163,308,361.20 × 74,384,125.60
  4. Step 4: Simplify right side
    108,872,240.80x = 12,147,549,651,030,964
  5. Step 5: Solve for x
    x = 12,147,549,651,030,964/108,872,240.80
  6. Step 6: Final answer
    x = 111,576,188.40

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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.