Finding the Fourth Proportional to 689,531,826.52, 1,034,106,372.42 and 191,427,912.28
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Solution
The fourth proportional to 689,531,826.52, 1,034,106,372.42 and 191,427,912.28 is: 287,088,740.99
Step by Step Solution
- Step 1: Write the proportion equation
689,531,826.52 : 1,034,106,372.42 = 191,427,912.28 : x - Step 2: Convert to fraction form
689,531,826.52/1,034,106,372.42 = 191,427,912.28/x - Step 3: Cross multiply
689,531,826.52x = 1,034,106,372.42 × 191,427,912.28 - Step 4: Simplify right side
689,531,826.52x = 197,956,823,947,804,768 - Step 5: Solve for x
x = 197,956,823,947,804,768/689,531,826.52 - Step 6: Final answer
x = 287,088,740.99
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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.