Finding the Fourth Proportional to 135,015,307.95, 186,322,019.40 and 73,135,645.91
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Solution
The fourth proportional to 135,015,307.95, 186,322,019.40 and 73,135,645.91 is: 100,927,675.85
Step by Step Solution
- Step 1: Write the proportion equation
135,015,307.95 : 186,322,019.40 = 73,135,645.91 : x - Step 2: Convert to fraction form
135,015,307.95/186,322,019.40 = 73,135,645.91/x - Step 3: Cross multiply
135,015,307.95x = 186,322,019.40 × 73,135,645.91 - Step 4: Simplify right side
135,015,307.95x = 13,626,781,235,142,942 - Step 5: Solve for x
x = 13,626,781,235,142,942/135,015,307.95 - Step 6: Final answer
x = 100,927,675.85
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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.