Finding the Fourth Proportional to 13,908,437.60, 19,194,792.91 and 7,715,480.99
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Solution
The fourth proportional to 13,908,437.60, 19,194,792.91 and 7,715,480.99 is: 10,648,001.18
Step by Step Solution
- Step 1: Write the proportion equation
13,908,437.60 : 19,194,792.91 = 7,715,480.99 : x - Step 2: Convert to fraction form
13,908,437.60/19,194,792.91 = 7,715,480.99/x - Step 3: Cross multiply
13,908,437.60x = 19,194,792.91 × 7,715,480.99 - Step 4: Simplify right side
13,908,437.60x = 148,097,059,884,791.81 - Step 5: Solve for x
x = 148,097,059,884,791.81/13,908,437.60 - Step 6: Final answer
x = 10,648,001.18
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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.