Home / 21,470,132.30-29,628,852.10-11,680,574.36

Finding the Fourth Proportional to 21,470,132.30, 29,628,852.10 and 11,680,574.36

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Solution

The fourth proportional to 21,470,132.30, 29,628,852.10 and 11,680,574.36 is: 16,119,230.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,470,132.30 : 29,628,852.10 = 11,680,574.36 : x
  2. Step 2: Convert to fraction form
    21,470,132.30/29,628,852.10 = 11,680,574.36/x
  3. Step 3: Cross multiply
    21,470,132.30x = 29,628,852.10 × 11,680,574.36
  4. Step 4: Simplify right side
    21,470,132.30x = 346,082,009,978,146.50
  5. Step 5: Solve for x
    x = 346,082,009,978,146.50/21,470,132.30
  6. Step 6: Final answer
    x = 16,119,230.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.