Home / 1,271,214,901.80-1,906,822,352.70-657,987,100.20

Finding the Fourth Proportional to 1,271,214,901.80, 1,906,822,352.70 and 657,987,100.20

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Solution

The fourth proportional to 1,271,214,901.80, 1,906,822,352.70 and 657,987,100.20 is: 986,980,650.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,214,901.80 : 1,906,822,352.70 = 657,987,100.20 : x
  2. Step 2: Convert to fraction form
    1,271,214,901.80/1,906,822,352.70 = 657,987,100.20/x
  3. Step 3: Cross multiply
    1,271,214,901.80x = 1,906,822,352.70 × 657,987,100.20
  4. Step 4: Simplify right side
    1,271,214,901.80x = 1,254,664,510,449,614,848
  5. Step 5: Solve for x
    x = 1,254,664,510,449,614,848/1,271,214,901.80
  6. Step 6: Final answer
    x = 986,980,650.30

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Double scale
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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.