Home / 1,119,957,771.28-1,545,310,992.84-643,556,089.03

Finding the Fourth Proportional to 1,119,957,771.28, 1,545,310,992.84 and 643,556,089.03

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Solution

The fourth proportional to 1,119,957,771.28, 1,545,310,992.84 and 643,556,089.03 is: 887,974,818.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,957,771.28 : 1,545,310,992.84 = 643,556,089.03 : x
  2. Step 2: Convert to fraction form
    1,119,957,771.28/1,545,310,992.84 = 643,556,089.03/x
  3. Step 3: Cross multiply
    1,119,957,771.28x = 1,545,310,992.84 × 643,556,089.03
  4. Step 4: Simplify right side
    1,119,957,771.28x = 994,494,298,887,176,576
  5. Step 5: Solve for x
    x = 994,494,298,887,176,576/1,119,957,771.28
  6. Step 6: Final answer
    x = 887,974,818.68

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1.5x scale

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.