Finding the Fourth Proportional to 103,059,324.84, 142,221,029.94 and 56,649,085.32
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Solution
The fourth proportional to 103,059,324.84, 142,221,029.94 and 56,649,085.32 is: 78,175,276.93
Step by Step Solution
- Step 1: Write the proportion equation
103,059,324.84 : 142,221,029.94 = 56,649,085.32 : x - Step 2: Convert to fraction form
103,059,324.84/142,221,029.94 = 56,649,085.32/x - Step 3: Cross multiply
103,059,324.84x = 142,221,029.94 × 56,649,085.32 - Step 4: Simplify right side
103,059,324.84x = 8,056,691,259,369,334 - Step 5: Solve for x
x = 8,056,691,259,369,334/103,059,324.84 - Step 6: Final answer
x = 78,175,276.93
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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.