Finding the Fourth Proportional to 128,466,032.40, 177,283,302.32 and 69,728,709.06
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Solution
The fourth proportional to 128,466,032.40, 177,283,302.32 and 69,728,709.06 is: 96,225,714.90
Step by Step Solution
- Step 1: Write the proportion equation
128,466,032.40 : 177,283,302.32 = 69,728,709.06 : x - Step 2: Convert to fraction form
128,466,032.40/177,283,302.32 = 69,728,709.06/x - Step 3: Cross multiply
128,466,032.40x = 177,283,302.32 × 69,728,709.06 - Step 4: Simplify right side
128,466,032.40x = 12,361,735,808,667,302 - Step 5: Solve for x
x = 12,361,735,808,667,302/128,466,032.40 - Step 6: Final answer
x = 96,225,714.90
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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.