Home / 21,159,938.40-31,739,907.60-11,065,653.60

Finding the Fourth Proportional to 21,159,938.40, 31,739,907.60 and 11,065,653.60

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Solution

The fourth proportional to 21,159,938.40, 31,739,907.60 and 11,065,653.60 is: 16,598,480.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,159,938.40 : 31,739,907.60 = 11,065,653.60 : x
  2. Step 2: Convert to fraction form
    21,159,938.40/31,739,907.60 = 11,065,653.60/x
  3. Step 3: Cross multiply
    21,159,938.40x = 31,739,907.60 × 11,065,653.60
  4. Step 4: Simplify right side
    21,159,938.40x = 351,222,822,797,607.38
  5. Step 5: Solve for x
    x = 351,222,822,797,607.38/21,159,938.40
  6. Step 6: Final answer
    x = 16,598,480.40

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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.