Home / 1,243,117,770.84-1,715,496,542.46-686,195,946.36

Finding the Fourth Proportional to 1,243,117,770.84, 1,715,496,542.46 and 686,195,946.36

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Solution

The fourth proportional to 1,243,117,770.84, 1,715,496,542.46 and 686,195,946.36 is: 946,947,104.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,117,770.84 : 1,715,496,542.46 = 686,195,946.36 : x
  2. Step 2: Convert to fraction form
    1,243,117,770.84/1,715,496,542.46 = 686,195,946.36/x
  3. Step 3: Cross multiply
    1,243,117,770.84x = 1,715,496,542.46 × 686,195,946.36
  4. Step 4: Simplify right side
    1,243,117,770.84x = 1,177,166,773,430,647,552
  5. Step 5: Solve for x
    x = 1,177,166,773,430,647,552/1,243,117,770.84
  6. Step 6: Final answer
    x = 946,947,104.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.