Home / 108,872,440.40-163,308,660.60-68,561,656.40

Finding the Fourth Proportional to 108,872,440.40, 163,308,660.60 and 68,561,656.40

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Solution

The fourth proportional to 108,872,440.40, 163,308,660.60 and 68,561,656.40 is: 102,842,484.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,872,440.40 : 163,308,660.60 = 68,561,656.40 : x
  2. Step 2: Convert to fraction form
    108,872,440.40/163,308,660.60 = 68,561,656.40/x
  3. Step 3: Cross multiply
    108,872,440.40x = 163,308,660.60 × 68,561,656.40
  4. Step 4: Simplify right side
    108,872,440.40x = 11,196,712,275,201,418
  5. Step 5: Solve for x
    x = 11,196,712,275,201,418/108,872,440.40
  6. Step 6: Final answer
    x = 102,842,484.60

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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.