Finding the Fourth Proportional to 19,319,663.19, 26,661,774.59 and 10,618,144.23
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Solution
The fourth proportional to 19,319,663.19, 26,661,774.59 and 10,618,144.23 is: 14,653,390.45
Step by Step Solution
- Step 1: Write the proportion equation
19,319,663.19 : 26,661,774.59 = 10,618,144.23 : x - Step 2: Convert to fraction form
19,319,663.19/26,661,774.59 = 10,618,144.23/x - Step 3: Cross multiply
19,319,663.19x = 26,661,774.59 × 10,618,144.23 - Step 4: Simplify right side
19,319,663.19x = 283,098,568,024,369.12 - Step 5: Solve for x
x = 283,098,568,024,369.12/19,319,663.19 - Step 6: Final answer
x = 14,653,390.45
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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.