Home / 1,347,117,868.82-2,020,749,239.10-427,065,951.98

Finding the Fourth Proportional to 1,347,117,868.82, 2,020,749,239.10 and 427,065,951.98

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Solution

The fourth proportional to 1,347,117,868.82, 2,020,749,239.10 and 427,065,951.98 is: 640,621,891.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,117,868.82 : 2,020,749,239.10 = 427,065,951.98 : x
  2. Step 2: Convert to fraction form
    1,347,117,868.82/2,020,749,239.10 = 427,065,951.98/x
  3. Step 3: Cross multiply
    1,347,117,868.82x = 2,020,749,239.10 × 427,065,951.98
  4. Step 4: Simplify right side
    1,347,117,868.82x = 862,993,197,509,102,080
  5. Step 5: Solve for x
    x = 862,993,197,509,102,080/1,347,117,868.82
  6. Step 6: Final answer
    x = 640,621,891.73

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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.