Home / 1,443,214,961.60-1,991,636,647.42-783,165,239.60

Finding the Fourth Proportional to 1,443,214,961.60, 1,991,636,647.42 and 783,165,239.60

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Solution

The fourth proportional to 1,443,214,961.60, 1,991,636,647.42 and 783,165,239.60 is: 1,080,768,030.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,214,961.60 : 1,991,636,647.42 = 783,165,239.60 : x
  2. Step 2: Convert to fraction form
    1,443,214,961.60/1,991,636,647.42 = 783,165,239.60/x
  3. Step 3: Cross multiply
    1,443,214,961.60x = 1,991,636,647.42 × 783,165,239.60
  4. Step 4: Simplify right side
    1,443,214,961.60x = 1,559,780,592,172,825,088
  5. Step 5: Solve for x
    x = 1,559,780,592,172,825,088/1,443,214,961.60
  6. Step 6: Final answer
    x = 1,080,768,030.87

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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.