Home / 1,185,117,801.76-1,636,029,679.44-789,299,495.20

Finding the Fourth Proportional to 1,185,117,801.76, 1,636,029,679.44 and 789,299,495.20

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Solution

The fourth proportional to 1,185,117,801.76, 1,636,029,679.44 and 789,299,495.20 is: 1,089,611,005.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,117,801.76 : 1,636,029,679.44 = 789,299,495.20 : x
  2. Step 2: Convert to fraction form
    1,185,117,801.76/1,636,029,679.44 = 789,299,495.20/x
  3. Step 3: Cross multiply
    1,185,117,801.76x = 1,636,029,679.44 × 789,299,495.20
  4. Step 4: Simplify right side
    1,185,117,801.76x = 1,291,317,400,114,210,048
  5. Step 5: Solve for x
    x = 1,291,317,400,114,210,048/1,185,117,801.76
  6. Step 6: Final answer
    x = 1,089,611,005.92

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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.