Home / 1,119,957,758.28-1,545,310,974.90-643,556,076.03

Finding the Fourth Proportional to 1,119,957,758.28, 1,545,310,974.90 and 643,556,076.03

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Solution

The fourth proportional to 1,119,957,758.28, 1,545,310,974.90 and 643,556,076.03 is: 887,974,800.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,957,758.28 : 1,545,310,974.90 = 643,556,076.03 : x
  2. Step 2: Convert to fraction form
    1,119,957,758.28/1,545,310,974.90 = 643,556,076.03/x
  3. Step 3: Cross multiply
    1,119,957,758.28x = 1,545,310,974.90 × 643,556,076.03
  4. Step 4: Simplify right side
    1,119,957,758.28x = 994,494,267,252,737,792
  5. Step 5: Solve for x
    x = 994,494,267,252,737,792/1,119,957,758.28
  6. Step 6: Final answer
    x = 887,974,800.75

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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.