Home / 780,032,340.90-1,170,048,511.35-262,290,708.90

Finding the Fourth Proportional to 780,032,340.90, 1,170,048,511.35 and 262,290,708.90

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Solution

The fourth proportional to 780,032,340.90, 1,170,048,511.35 and 262,290,708.90 is: 393,436,063.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,032,340.90 : 1,170,048,511.35 = 262,290,708.90 : x
  2. Step 2: Convert to fraction form
    780,032,340.90/1,170,048,511.35 = 262,290,708.90/x
  3. Step 3: Cross multiply
    780,032,340.90x = 1,170,048,511.35 × 262,290,708.90
  4. Step 4: Simplify right side
    780,032,340.90x = 306,892,853,489,381,184
  5. Step 5: Solve for x
    x = 306,892,853,489,381,184/780,032,340.90
  6. Step 6: Final answer
    x = 393,436,063.35

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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.