Home / 21,491,907.20-32,237,860.80-18,692,547.20

Finding the Fourth Proportional to 21,491,907.20, 32,237,860.80 and 18,692,547.20

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Solution

The fourth proportional to 21,491,907.20, 32,237,860.80 and 18,692,547.20 is: 28,038,820.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,491,907.20 : 32,237,860.80 = 18,692,547.20 : x
  2. Step 2: Convert to fraction form
    21,491,907.20/32,237,860.80 = 18,692,547.20/x
  3. Step 3: Cross multiply
    21,491,907.20x = 32,237,860.80 × 18,692,547.20
  4. Step 4: Simplify right side
    21,491,907.20x = 602,607,734,631,029.75
  5. Step 5: Solve for x
    x = 602,607,734,631,029.75/21,491,907.20
  6. Step 6: Final answer
    x = 28,038,820.80

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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.