Home / 28,009,442.31-38,653,199.30-15,620,318.77

Finding the Fourth Proportional to 28,009,442.31, 38,653,199.30 and 15,620,318.77

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Solution

The fourth proportional to 28,009,442.31, 38,653,199.30 and 15,620,318.77 is: 21,556,134.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,009,442.31 : 38,653,199.30 = 15,620,318.77 : x
  2. Step 2: Convert to fraction form
    28,009,442.31/38,653,199.30 = 15,620,318.77/x
  3. Step 3: Cross multiply
    28,009,442.31x = 38,653,199.30 × 15,620,318.77
  4. Step 4: Simplify right side
    28,009,442.31x = 603,775,294,371,606.25
  5. Step 5: Solve for x
    x = 603,775,294,371,606.25/28,009,442.31
  6. Step 6: Final answer
    x = 21,556,134.10

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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.