Home / 677,078,844.12-934,470,936.50-412,914,075.57

Finding the Fourth Proportional to 677,078,844.12, 934,470,936.50 and 412,914,075.57

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Solution

The fourth proportional to 677,078,844.12, 934,470,936.50 and 412,914,075.57 is: 569,883,708.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,078,844.12 : 934,470,936.50 = 412,914,075.57 : x
  2. Step 2: Convert to fraction form
    677,078,844.12/934,470,936.50 = 412,914,075.57/x
  3. Step 3: Cross multiply
    677,078,844.12x = 934,470,936.50 × 412,914,075.57
  4. Step 4: Simplify right side
    677,078,844.12x = 385,856,202,889,865,088
  5. Step 5: Solve for x
    x = 385,856,202,889,865,088/677,078,844.12
  6. Step 6: Final answer
    x = 569,883,708.88

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1.5x scale

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.