Home / 1,384,179,365.34-1,910,179,436.18-789,493,972.77

Finding the Fourth Proportional to 1,384,179,365.34, 1,910,179,436.18 and 789,493,972.77

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Solution

The fourth proportional to 1,384,179,365.34, 1,910,179,436.18 and 789,493,972.77 is: 1,089,508,476.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,179,365.34 : 1,910,179,436.18 = 789,493,972.77 : x
  2. Step 2: Convert to fraction form
    1,384,179,365.34/1,910,179,436.18 = 789,493,972.77/x
  3. Step 3: Cross multiply
    1,384,179,365.34x = 1,910,179,436.18 × 789,493,972.77
  4. Step 4: Simplify right side
    1,384,179,365.34x = 1,508,075,151,769,359,360
  5. Step 5: Solve for x
    x = 1,508,075,151,769,359,360/1,384,179,365.34
  6. Step 6: Final answer
    x = 1,089,508,476.67

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Double scale
Find fourth proportional to 1,384,179,366.34, 1,910,179,437.56 and 789,493,973.77
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1.5x scale

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.