Home / 108,869,863.20-163,304,794.80-81,996,007.20

Finding the Fourth Proportional to 108,869,863.20, 163,304,794.80 and 81,996,007.20

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Solution

The fourth proportional to 108,869,863.20, 163,304,794.80 and 81,996,007.20 is: 122,994,010.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,869,863.20 : 163,304,794.80 = 81,996,007.20 : x
  2. Step 2: Convert to fraction form
    108,869,863.20/163,304,794.80 = 81,996,007.20/x
  3. Step 3: Cross multiply
    108,869,863.20x = 163,304,794.80 × 81,996,007.20
  4. Step 4: Simplify right side
    108,869,863.20x = 13,390,341,130,215,324
  5. Step 5: Solve for x
    x = 13,390,341,130,215,324/108,869,863.20
  6. Step 6: Final answer
    x = 122,994,010.80

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1.5x scale

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.