Home / 1,119,957,771.54-1,545,310,993.22-643,556,089.28

Finding the Fourth Proportional to 1,119,957,771.54, 1,545,310,993.22 and 643,556,089.28

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Solution

The fourth proportional to 1,119,957,771.54, 1,545,310,993.22 and 643,556,089.28 is: 887,974,819.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,957,771.54 : 1,545,310,993.22 = 643,556,089.28 : x
  2. Step 2: Convert to fraction form
    1,119,957,771.54/1,545,310,993.22 = 643,556,089.28/x
  3. Step 3: Cross multiply
    1,119,957,771.54x = 1,545,310,993.22 × 643,556,089.28
  4. Step 4: Simplify right side
    1,119,957,771.54x = 994,494,299,518,055,808
  5. Step 5: Solve for x
    x = 994,494,299,518,055,808/1,119,957,771.54
  6. Step 6: Final answer
    x = 887,974,819.04

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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.