Home / 80,787,999.80-121,258,107.30-42,477,008.60

Finding the Fourth Proportional to 80,787,999.80, 121,258,107.30 and 42,477,008.60

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Solution

The fourth proportional to 80,787,999.80, 121,258,107.30 and 42,477,008.60 is: 63,755,529.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,787,999.80 : 121,258,107.30 = 42,477,008.60 : x
  2. Step 2: Convert to fraction form
    80,787,999.80/121,258,107.30 = 42,477,008.60/x
  3. Step 3: Cross multiply
    80,787,999.80x = 121,258,107.30 × 42,477,008.60
  4. Step 4: Simplify right side
    80,787,999.80x = 5,150,681,666,601,823
  5. Step 5: Solve for x
    x = 5,150,681,666,601,823/80,787,999.80
  6. Step 6: Final answer
    x = 63,755,529.03

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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.