Finding the Fourth Proportional to 13,528,474.66, 18,669,319.95 and 7,333,502.21
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Solution
The fourth proportional to 13,528,474.66, 18,669,319.95 and 7,333,502.21 is: 10,120,246.56
Step by Step Solution
- Step 1: Write the proportion equation
13,528,474.66 : 18,669,319.95 = 7,333,502.21 : x - Step 2: Convert to fraction form
13,528,474.66/18,669,319.95 = 7,333,502.21/x - Step 3: Cross multiply
13,528,474.66x = 18,669,319.95 × 7,333,502.21 - Step 4: Simplify right side
13,528,474.66x = 136,911,499,112,522.08 - Step 5: Solve for x
x = 136,911,499,112,522.08/13,528,474.66 - Step 6: Final answer
x = 10,120,246.56
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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.