Home / 20,822,075.80-31,191,641.70-18,328,226.20

Finding the Fourth Proportional to 20,822,075.80, 31,191,641.70 and 18,328,226.20

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Solution

The fourth proportional to 20,822,075.80, 31,191,641.70 and 18,328,226.20 is: 27,455,834.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,822,075.80 : 31,191,641.70 = 18,328,226.20 : x
  2. Step 2: Convert to fraction form
    20,822,075.80/31,191,641.70 = 18,328,226.20/x
  3. Step 3: Cross multiply
    20,822,075.80x = 31,191,641.70 × 18,328,226.20
  4. Step 4: Simplify right side
    20,822,075.80x = 571,687,464,626,952.50
  5. Step 5: Solve for x
    x = 571,687,464,626,952.50/20,822,075.80
  6. Step 6: Final answer
    x = 27,455,834.38

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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.