Home / 108,768,257.60-163,152,386.40-81,894,401.60

Finding the Fourth Proportional to 108,768,257.60, 163,152,386.40 and 81,894,401.60

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Solution

The fourth proportional to 108,768,257.60, 163,152,386.40 and 81,894,401.60 is: 122,841,602.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,768,257.60 : 163,152,386.40 = 81,894,401.60 : x
  2. Step 2: Convert to fraction form
    108,768,257.60/163,152,386.40 = 81,894,401.60/x
  3. Step 3: Cross multiply
    108,768,257.60x = 163,152,386.40 × 81,894,401.60
  4. Step 4: Simplify right side
    108,768,257.60x = 13,361,267,053,839,978
  5. Step 5: Solve for x
    x = 13,361,267,053,839,978/108,768,257.60
  6. Step 6: Final answer
    x = 122,841,602.40

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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.