Home / 12,586,075.85-18,871,520.43-4,805,498.21

Finding the Fourth Proportional to 12,586,075.85, 18,871,520.43 and 4,805,498.21

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Solution

The fourth proportional to 12,586,075.85, 18,871,520.43 and 4,805,498.21 is: 7,205,348.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,586,075.85 : 18,871,520.43 = 4,805,498.21 : x
  2. Step 2: Convert to fraction form
    12,586,075.85/18,871,520.43 = 4,805,498.21/x
  3. Step 3: Cross multiply
    12,586,075.85x = 18,871,520.43 × 4,805,498.21
  4. Step 4: Simplify right side
    12,586,075.85x = 90,687,057,570,006.45
  5. Step 5: Solve for x
    x = 90,687,057,570,006.45/12,586,075.85
  6. Step 6: Final answer
    x = 7,205,348.09

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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.