Finding the Fourth Proportional to 691,497,618.70, 1,037,248,184.94 and 282,553,769.20
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Solution
The fourth proportional to 691,497,618.70, 1,037,248,184.94 and 282,553,769.20 is: 423,831,371.69
Step by Step Solution
- Step 1: Write the proportion equation
691,497,618.70 : 1,037,248,184.94 = 282,553,769.20 : x - Step 2: Convert to fraction form
691,497,618.70/1,037,248,184.94 = 282,553,769.20/x - Step 3: Cross multiply
691,497,618.70x = 1,037,248,184.94 × 282,553,769.20 - Step 4: Simplify right side
691,497,618.70x = 293,078,384,250,655,680 - Step 5: Solve for x
x = 293,078,384,250,655,680/691,497,618.70 - Step 6: Final answer
x = 423,831,371.69
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.