Finding the Fourth Proportional to 777,619,129.44, 1,166,429,816.74 and 317,557,298.75
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Solution
The fourth proportional to 777,619,129.44, 1,166,429,816.74 and 317,557,298.75 is: 476,336,406.55
Step by Step Solution
- Step 1: Write the proportion equation
777,619,129.44 : 1,166,429,816.74 = 317,557,298.75 : x - Step 2: Convert to fraction form
777,619,129.44/1,166,429,816.74 = 317,557,298.75/x - Step 3: Cross multiply
777,619,129.44x = 1,166,429,816.74 × 317,557,298.75 - Step 4: Simplify right side
777,619,129.44x = 370,408,301,785,411,904 - Step 5: Solve for x
x = 370,408,301,785,411,904/777,619,129.44 - Step 6: Final answer
x = 476,336,406.55
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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.