Finding the Fourth Proportional to 72,831,863.63, 109,176,788.81 and 29,099,583.74
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Solution
The fourth proportional to 72,831,863.63, 109,176,788.81 and 29,099,583.74 is: 43,621,005.28
Step by Step Solution
- Step 1: Write the proportion equation
72,831,863.63 : 109,176,788.81 = 29,099,583.74 : x - Step 2: Convert to fraction form
72,831,863.63/109,176,788.81 = 29,099,583.74/x - Step 3: Cross multiply
72,831,863.63x = 109,176,788.81 × 29,099,583.74 - Step 4: Simplify right side
72,831,863.63x = 3,176,999,107,895,006 - Step 5: Solve for x
x = 3,176,999,107,895,006/72,831,863.63 - Step 6: Final answer
x = 43,621,005.28
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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.