Home / 72,171,492.40-108,257,238.60-70,736,601.70

Finding the Fourth Proportional to 72,171,492.40, 108,257,238.60 and 70,736,601.70

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Solution

The fourth proportional to 72,171,492.40, 108,257,238.60 and 70,736,601.70 is: 106,104,902.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,171,492.40 : 108,257,238.60 = 70,736,601.70 : x
  2. Step 2: Convert to fraction form
    72,171,492.40/108,257,238.60 = 70,736,601.70/x
  3. Step 3: Cross multiply
    72,171,492.40x = 108,257,238.60 × 70,736,601.70
  4. Step 4: Simplify right side
    72,171,492.40x = 7,657,749,167,990,066
  5. Step 5: Solve for x
    x = 7,657,749,167,990,066/72,171,492.40
  6. Step 6: Final answer
    x = 106,104,902.55

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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.