Finding the Fourth Proportional to 13,176,887.20, 19,766,805.36 and 4,199,397.28
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Solution
The fourth proportional to 13,176,887.20, 19,766,805.36 and 4,199,397.28 is: 6,299,565.85
Step by Step Solution
- Step 1: Write the proportion equation
13,176,887.20 : 19,766,805.36 = 4,199,397.28 : x - Step 2: Convert to fraction form
13,176,887.20/19,766,805.36 = 4,199,397.28/x - Step 3: Cross multiply
13,176,887.20x = 19,766,805.36 × 4,199,397.28 - Step 4: Simplify right side
13,176,887.20x = 83,008,668,663,073.42 - Step 5: Solve for x
x = 83,008,668,663,073.42/13,176,887.20 - Step 6: Final answer
x = 6,299,565.85
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.