Finding the Fourth Proportional to 48,364,811.60, 72,484,231.80 and 19,587,390.80
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Solution
The fourth proportional to 48,364,811.60, 72,484,231.80 and 19,587,390.80 is: 29,355,577.50
Step by Step Solution
- Step 1: Write the proportion equation
48,364,811.60 : 72,484,231.80 = 19,587,390.80 : x - Step 2: Convert to fraction form
48,364,811.60/72,484,231.80 = 19,587,390.80/x - Step 3: Cross multiply
48,364,811.60x = 72,484,231.80 × 19,587,390.80 - Step 4: Simplify right side
48,364,811.60x = 1,419,776,975,104,387.50 - Step 5: Solve for x
x = 1,419,776,975,104,387.50/48,364,811.60 - Step 6: Final answer
x = 29,355,577.50
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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.