Home / 919,908,866.80-1,379,863,300.20-552,576,847.60

Finding the Fourth Proportional to 919,908,866.80, 1,379,863,300.20 and 552,576,847.60

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Solution

The fourth proportional to 919,908,866.80, 1,379,863,300.20 and 552,576,847.60 is: 828,865,271.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,908,866.80 : 1,379,863,300.20 = 552,576,847.60 : x
  2. Step 2: Convert to fraction form
    919,908,866.80/1,379,863,300.20 = 552,576,847.60/x
  3. Step 3: Cross multiply
    919,908,866.80x = 1,379,863,300.20 × 552,576,847.60
  4. Step 4: Simplify right side
    919,908,866.80x = 762,480,512,543,448,448
  5. Step 5: Solve for x
    x = 762,480,512,543,448,448/919,908,866.80
  6. Step 6: Final answer
    x = 828,865,271.40

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1.5x scale

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.