Home / 21,575,394.78-32,362,870.64-12,471,699.74

Finding the Fourth Proportional to 21,575,394.78, 32,362,870.64 and 12,471,699.74

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Solution

The fourth proportional to 21,575,394.78, 32,362,870.64 and 12,471,699.74 is: 18,707,421.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,575,394.78 : 32,362,870.64 = 12,471,699.74 : x
  2. Step 2: Convert to fraction form
    21,575,394.78/32,362,870.64 = 12,471,699.74/x
  3. Step 3: Cross multiply
    21,575,394.78x = 32,362,870.64 × 12,471,699.74
  4. Step 4: Simplify right side
    21,575,394.78x = 403,620,005,346,541.62
  5. Step 5: Solve for x
    x = 403,620,005,346,541.62/21,575,394.78
  6. Step 6: Final answer
    x = 18,707,421.55

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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.