Home / 172,551,206.40-258,826,809.60-81,851,942.40

Finding the Fourth Proportional to 172,551,206.40, 258,826,809.60 and 81,851,942.40

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Solution

The fourth proportional to 172,551,206.40, 258,826,809.60 and 81,851,942.40 is: 122,777,913.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,551,206.40 : 258,826,809.60 = 81,851,942.40 : x
  2. Step 2: Convert to fraction form
    172,551,206.40/258,826,809.60 = 81,851,942.40/x
  3. Step 3: Cross multiply
    172,551,206.40x = 258,826,809.60 × 81,851,942.40
  4. Step 4: Simplify right side
    172,551,206.40x = 21,185,477,110,954,968
  5. Step 5: Solve for x
    x = 21,185,477,110,954,968/172,551,206.40
  6. Step 6: Final answer
    x = 122,777,913.60

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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.