Finding the Fourth Proportional to 73,438,991.60, 110,185,606.20 and 30,311,934.80
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Solution
The fourth proportional to 73,438,991.60, 110,185,606.20 and 30,311,934.80 is: 45,479,095.48
Step by Step Solution
- Step 1: Write the proportion equation
73,438,991.60 : 110,185,606.20 = 30,311,934.80 : x - Step 2: Convert to fraction form
73,438,991.60/110,185,606.20 = 30,311,934.80/x - Step 3: Cross multiply
73,438,991.60x = 110,185,606.20 × 30,311,934.80 - Step 4: Simplify right side
73,438,991.60x = 3,339,938,911,032,876 - Step 5: Solve for x
x = 3,339,938,911,032,876/73,438,991.60 - Step 6: Final answer
x = 45,479,095.48
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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.