Home / 979,869,969.70-1,469,804,954.55-905,043,076.90

Finding the Fourth Proportional to 979,869,969.70, 1,469,804,954.55 and 905,043,076.90

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Solution

The fourth proportional to 979,869,969.70, 1,469,804,954.55 and 905,043,076.90 is: 1,357,564,615.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,869,969.70 : 1,469,804,954.55 = 905,043,076.90 : x
  2. Step 2: Convert to fraction form
    979,869,969.70/1,469,804,954.55 = 905,043,076.90/x
  3. Step 3: Cross multiply
    979,869,969.70x = 1,469,804,954.55 × 905,043,076.90
  4. Step 4: Simplify right side
    979,869,969.70x = 1,330,236,798,508,796,672
  5. Step 5: Solve for x
    x = 1,330,236,798,508,796,672/979,869,969.70
  6. Step 6: Final answer
    x = 1,357,564,615.35

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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.