Home / 15,648,542.88-21,570,045.82-12,335,437.78

Finding the Fourth Proportional to 15,648,542.88, 21,570,045.82 and 12,335,437.78

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Solution

The fourth proportional to 15,648,542.88, 21,570,045.82 and 12,335,437.78 is: 17,003,241.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,648,542.88 : 21,570,045.82 = 12,335,437.78 : x
  2. Step 2: Convert to fraction form
    15,648,542.88/21,570,045.82 = 12,335,437.78/x
  3. Step 3: Cross multiply
    15,648,542.88x = 21,570,045.82 × 12,335,437.78
  4. Step 4: Simplify right side
    15,648,542.88x = 266,075,958,124,359.06
  5. Step 5: Solve for x
    x = 266,075,958,124,359.06/15,648,542.88
  6. Step 6: Final answer
    x = 17,003,241.78

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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.