Home / 196,831,999.80-295,247,999.70-81,778,303.80

Finding the Fourth Proportional to 196,831,999.80, 295,247,999.70 and 81,778,303.80

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Solution

The fourth proportional to 196,831,999.80, 295,247,999.70 and 81,778,303.80 is: 122,667,455.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,831,999.80 : 295,247,999.70 = 81,778,303.80 : x
  2. Step 2: Convert to fraction form
    196,831,999.80/295,247,999.70 = 81,778,303.80/x
  3. Step 3: Cross multiply
    196,831,999.80x = 295,247,999.70 × 81,778,303.80
  4. Step 4: Simplify right side
    196,831,999.80x = 24,144,880,615,808,908
  5. Step 5: Solve for x
    x = 24,144,880,615,808,908/196,831,999.80
  6. Step 6: Final answer
    x = 122,667,455.70

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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.