Home / 1,329,705,674.40-1,994,558,511.60-778,707,645.60

Finding the Fourth Proportional to 1,329,705,674.40, 1,994,558,511.60 and 778,707,645.60

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Solution

The fourth proportional to 1,329,705,674.40, 1,994,558,511.60 and 778,707,645.60 is: 1,168,061,468.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,705,674.40 : 1,994,558,511.60 = 778,707,645.60 : x
  2. Step 2: Convert to fraction form
    1,329,705,674.40/1,994,558,511.60 = 778,707,645.60/x
  3. Step 3: Cross multiply
    1,329,705,674.40x = 1,994,558,511.60 × 778,707,645.60
  4. Step 4: Simplify right side
    1,329,705,674.40x = 1,553,177,962,579,476,224
  5. Step 5: Solve for x
    x = 1,553,177,962,579,476,224/1,329,705,674.40
  6. Step 6: Final answer
    x = 1,168,061,468.40

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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.