Home / 2,688,075.20-4,032,112.80-2,184,190.40

Finding the Fourth Proportional to 2,688,075.20, 4,032,112.80 and 2,184,190.40

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Solution

The fourth proportional to 2,688,075.20, 4,032,112.80 and 2,184,190.40 is: 3,276,285.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,075.20 : 4,032,112.80 = 2,184,190.40 : x
  2. Step 2: Convert to fraction form
    2,688,075.20/4,032,112.80 = 2,184,190.40/x
  3. Step 3: Cross multiply
    2,688,075.20x = 4,032,112.80 × 2,184,190.40
  4. Step 4: Simplify right side
    2,688,075.20x = 8,806,902,069,477.12
  5. Step 5: Solve for x
    x = 8,806,902,069,477.12/2,688,075.20
  6. Step 6: Final answer
    x = 3,276,285.60

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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.