Finding the Fourth Proportional to 19,382,853.12, 26,747,970.08 and 10,681,830.08
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Solution
The fourth proportional to 19,382,853.12, 26,747,970.08 and 10,681,830.08 is: 14,740,723.13
Step by Step Solution
- Step 1: Write the proportion equation
19,382,853.12 : 26,747,970.08 = 10,681,830.08 : x - Step 2: Convert to fraction form
19,382,853.12/26,747,970.08 = 10,681,830.08/x - Step 3: Cross multiply
19,382,853.12x = 26,747,970.08 × 10,681,830.08 - Step 4: Simplify right side
19,382,853.12x = 285,717,271,379,484 - Step 5: Solve for x
x = 285,717,271,379,484/19,382,853.12 - Step 6: Final answer
x = 14,740,723.13
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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.