Home / 108,005,004.80-161,755,564.80-105,840,166.40

Finding the Fourth Proportional to 108,005,004.80, 161,755,564.80 and 105,840,166.40

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Solution

The fourth proportional to 108,005,004.80, 161,755,564.80 and 105,840,166.40 is: 158,513,357.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,005,004.80 : 161,755,564.80 = 105,840,166.40 : x
  2. Step 2: Convert to fraction form
    108,005,004.80/161,755,564.80 = 105,840,166.40/x
  3. Step 3: Cross multiply
    108,005,004.80x = 161,755,564.80 × 105,840,166.40
  4. Step 4: Simplify right side
    108,005,004.80x = 17,120,235,894,557,984
  5. Step 5: Solve for x
    x = 17,120,235,894,557,984/108,005,004.80
  6. Step 6: Final answer
    x = 158,513,357.10

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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.