Finding the Fourth Proportional to 47,159,785.19, 70,739,677.79 and 13,081,131.07
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Solution
The fourth proportional to 47,159,785.19, 70,739,677.79 and 13,081,131.07 is: 19,621,696.61
Step by Step Solution
- Step 1: Write the proportion equation
47,159,785.19 : 70,739,677.79 = 13,081,131.07 : x - Step 2: Convert to fraction form
47,159,785.19/70,739,677.79 = 13,081,131.07/x - Step 3: Cross multiply
47,159,785.19x = 70,739,677.79 × 13,081,131.07 - Step 4: Simplify right side
47,159,785.19x = 925,354,997,020,558 - Step 5: Solve for x
x = 925,354,997,020,558/47,159,785.19 - Step 6: Final answer
x = 19,621,696.61
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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.