Home / 979,869,968.70-1,469,804,953.05-905,043,075.90

Finding the Fourth Proportional to 979,869,968.70, 1,469,804,953.05 and 905,043,075.90

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Solution

The fourth proportional to 979,869,968.70, 1,469,804,953.05 and 905,043,075.90 is: 1,357,564,613.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,869,968.70 : 1,469,804,953.05 = 905,043,075.90 : x
  2. Step 2: Convert to fraction form
    979,869,968.70/1,469,804,953.05 = 905,043,075.90/x
  3. Step 3: Cross multiply
    979,869,968.70x = 1,469,804,953.05 × 905,043,075.90
  4. Step 4: Simplify right side
    979,869,968.70x = 1,330,236,795,681,426,944
  5. Step 5: Solve for x
    x = 1,330,236,795,681,426,944/979,869,968.70
  6. Step 6: Final answer
    x = 1,357,564,613.85

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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.