Home / 21,197,009,719.87-31,804,903,973.41-11,110,325,497.81

Finding the Fourth Proportional to 21,197,009,719.87, 31,804,903,973.41 and 11,110,325,497.81

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Solution

The fourth proportional to 21,197,009,719.87, 31,804,903,973.41 and 11,110,325,497.81 is: 16,670,409,658.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,197,009,719.87 : 31,804,903,973.41 = 11,110,325,497.81 : x
  2. Step 2: Convert to fraction form
    21,197,009,719.87/31,804,903,973.41 = 11,110,325,497.81/x
  3. Step 3: Cross multiply
    21,197,009,719.87x = 31,804,903,973.41 × 11,110,325,497.81
  4. Step 4: Simplify right side
    21,197,009,719.87x = 353,362,835,571,035,799,552
  5. Step 5: Solve for x
    x = 353,362,835,571,035,799,552/21,197,009,719.87
  6. Step 6: Final answer
    x = 16,670,409,658.77

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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.