Home / 1,243,446,704.60-1,715,980,336.88-678,953,967.95

Finding the Fourth Proportional to 1,243,446,704.60, 1,715,980,336.88 and 678,953,967.95

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Solution

The fourth proportional to 1,243,446,704.60, 1,715,980,336.88 and 678,953,967.95 is: 936,969,517.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,446,704.60 : 1,715,980,336.88 = 678,953,967.95 : x
  2. Step 2: Convert to fraction form
    1,243,446,704.60/1,715,980,336.88 = 678,953,967.95/x
  3. Step 3: Cross multiply
    1,243,446,704.60x = 1,715,980,336.88 × 678,953,967.95
  4. Step 4: Simplify right side
    1,243,446,704.60x = 1,165,071,658,636,879,104
  5. Step 5: Solve for x
    x = 1,165,071,658,636,879,104/1,243,446,704.60
  6. Step 6: Final answer
    x = 936,969,517.33

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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.