Finding the Fourth Proportional to 19,415,790.57, 29,116,117.14 and 7,278,631.55
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Solution
The fourth proportional to 19,415,790.57, 29,116,117.14 and 7,278,631.55 is: 10,915,109.95
Step by Step Solution
- Step 1: Write the proportion equation
19,415,790.57 : 29,116,117.14 = 7,278,631.55 : x - Step 2: Convert to fraction form
19,415,790.57/29,116,117.14 = 7,278,631.55/x - Step 3: Cross multiply
19,415,790.57x = 29,116,117.14 × 7,278,631.55 - Step 4: Simplify right side
19,415,790.57x = 211,925,488,765,009.75 - Step 5: Solve for x
x = 211,925,488,765,009.75/19,415,790.57 - Step 6: Final answer
x = 10,915,109.95
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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.