Home / 838,753,921.80-1,258,130,882.70-757,124,584.20

Finding the Fourth Proportional to 838,753,921.80, 1,258,130,882.70 and 757,124,584.20

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Solution

The fourth proportional to 838,753,921.80, 1,258,130,882.70 and 757,124,584.20 is: 1,135,686,876.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,753,921.80 : 1,258,130,882.70 = 757,124,584.20 : x
  2. Step 2: Convert to fraction form
    838,753,921.80/1,258,130,882.70 = 757,124,584.20/x
  3. Step 3: Cross multiply
    838,753,921.80x = 1,258,130,882.70 × 757,124,584.20
  4. Step 4: Simplify right side
    838,753,921.80x = 952,561,821,433,416,576
  5. Step 5: Solve for x
    x = 952,561,821,433,416,576/838,753,921.80
  6. Step 6: Final answer
    x = 1,135,686,876.30

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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.