Home / 171,072,068.80-256,608,103.20-138,823,441.60

Finding the Fourth Proportional to 171,072,068.80, 256,608,103.20 and 138,823,441.60

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Solution

The fourth proportional to 171,072,068.80, 256,608,103.20 and 138,823,441.60 is: 208,235,162.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,072,068.80 : 256,608,103.20 = 138,823,441.60 : x
  2. Step 2: Convert to fraction form
    171,072,068.80/256,608,103.20 = 138,823,441.60/x
  3. Step 3: Cross multiply
    171,072,068.80x = 256,608,103.20 × 138,823,441.60
  4. Step 4: Simplify right side
    171,072,068.80x = 35,623,220,028,671,968
  5. Step 5: Solve for x
    x = 35,623,220,028,671,968/171,072,068.80
  6. Step 6: Final answer
    x = 208,235,162.40

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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.