Home / 28,191,830.40-42,287,745.60-13,075,286.40

Finding the Fourth Proportional to 28,191,830.40, 42,287,745.60 and 13,075,286.40

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Solution

The fourth proportional to 28,191,830.40, 42,287,745.60 and 13,075,286.40 is: 19,612,929.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,191,830.40 : 42,287,745.60 = 13,075,286.40 : x
  2. Step 2: Convert to fraction form
    28,191,830.40/42,287,745.60 = 13,075,286.40/x
  3. Step 3: Cross multiply
    28,191,830.40x = 42,287,745.60 × 13,075,286.40
  4. Step 4: Simplify right side
    28,191,830.40x = 552,924,384,930,339.88
  5. Step 5: Solve for x
    x = 552,924,384,930,339.88/28,191,830.40
  6. Step 6: Final answer
    x = 19,612,929.60

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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.