Home / 8,421,192-11,620,538.64-4,982,830.56

Finding the Fourth Proportional to 8,421,192, 11,620,538.64 and 4,982,830.56

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Solution

The fourth proportional to 8,421,192, 11,620,538.64 and 4,982,830.56 is: 6,875,888.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,421,192 : 11,620,538.64 = 4,982,830.56 : x
  2. Step 2: Convert to fraction form
    8,421,192/11,620,538.64 = 4,982,830.56/x
  3. Step 3: Cross multiply
    8,421,192x = 11,620,538.64 × 4,982,830.56
  4. Step 4: Simplify right side
    8,421,192x = 57,903,175,059,052.84
  5. Step 5: Solve for x
    x = 57,903,175,059,052.84/8,421,192
  6. Step 6: Final answer
    x = 6,875,888.24

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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.