Finding the Fourth Proportional to 84,814,714.78, 117,049,305.99 and 63,869,794.59
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Solution
The fourth proportional to 84,814,714.78, 117,049,305.99 and 63,869,794.59 is: 88,144,081.49
Step by Step Solution
- Step 1: Write the proportion equation
84,814,714.78 : 117,049,305.99 = 63,869,794.59 : x - Step 2: Convert to fraction form
84,814,714.78/117,049,305.99 = 63,869,794.59/x - Step 3: Cross multiply
84,814,714.78x = 117,049,305.99 × 63,869,794.59 - Step 4: Simplify right side
84,814,714.78x = 7,475,915,130,450,049 - Step 5: Solve for x
x = 7,475,915,130,450,049/84,814,714.78 - Step 6: Final answer
x = 88,144,081.49
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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.