Home / 6,638,112,318.40-9,957,672,362.40-1,979,622,692.80

Finding the Fourth Proportional to 6,638,112,318.40, 9,957,672,362.40 and 1,979,622,692.80

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Solution

The fourth proportional to 6,638,112,318.40, 9,957,672,362.40 and 1,979,622,692.80 is: 2,969,584,308.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,638,112,318.40 : 9,957,672,362.40 = 1,979,622,692.80 : x
  2. Step 2: Convert to fraction form
    6,638,112,318.40/9,957,672,362.40 = 1,979,622,692.80/x
  3. Step 3: Cross multiply
    6,638,112,318.40x = 9,957,672,362.40 × 1,979,622,692.80
  4. Step 4: Simplify right side
    6,638,112,318.40x = 19,712,434,176,074,424,320
  5. Step 5: Solve for x
    x = 19,712,434,176,074,424,320/6,638,112,318.40
  6. Step 6: Final answer
    x = 2,969,584,308.09

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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.