Home / 108,860,802.80-163,291,204.20-81,651,023.60

Finding the Fourth Proportional to 108,860,802.80, 163,291,204.20 and 81,651,023.60

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Solution

The fourth proportional to 108,860,802.80, 163,291,204.20 and 81,651,023.60 is: 122,476,535.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,860,802.80 : 163,291,204.20 = 81,651,023.60 : x
  2. Step 2: Convert to fraction form
    108,860,802.80/163,291,204.20 = 81,651,023.60/x
  3. Step 3: Cross multiply
    108,860,802.80x = 163,291,204.20 × 81,651,023.60
  4. Step 4: Simplify right side
    108,860,802.80x = 13,332,893,967,806,618
  5. Step 5: Solve for x
    x = 13,332,893,967,806,618/108,860,802.80
  6. Step 6: Final answer
    x = 122,476,535.40

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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.