Home / 1,329,704,615.40-1,994,556,923.10-778,706,586.60

Finding the Fourth Proportional to 1,329,704,615.40, 1,994,556,923.10 and 778,706,586.60

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Solution

The fourth proportional to 1,329,704,615.40, 1,994,556,923.10 and 778,706,586.60 is: 1,168,059,879.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,704,615.40 : 1,994,556,923.10 = 778,706,586.60 : x
  2. Step 2: Convert to fraction form
    1,329,704,615.40/1,994,556,923.10 = 778,706,586.60/x
  3. Step 3: Cross multiply
    1,329,704,615.40x = 1,994,556,923.10 × 778,706,586.60
  4. Step 4: Simplify right side
    1,329,704,615.40x = 1,553,174,613,366,599,680
  5. Step 5: Solve for x
    x = 1,553,174,613,366,599,680/1,329,704,615.40
  6. Step 6: Final answer
    x = 1,168,059,879.90

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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.