Finding the Fourth Proportional to 998,548,246.70, 1,497,374,472.45 and 384,928,534.70
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Solution
The fourth proportional to 998,548,246.70, 1,497,374,472.45 and 384,928,534.70 is: 577,220,142.82
Step by Step Solution
- Step 1: Write the proportion equation
998,548,246.70 : 1,497,374,472.45 = 384,928,534.70 : x - Step 2: Convert to fraction form
998,548,246.70/1,497,374,472.45 = 384,928,534.70/x - Step 3: Cross multiply
998,548,246.70x = 1,497,374,472.45 × 384,928,534.70 - Step 4: Simplify right side
998,548,246.70x = 576,382,161,577,364,032 - Step 5: Solve for x
x = 576,382,161,577,364,032/998,548,246.70 - Step 6: Final answer
x = 577,220,142.82
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Double scale
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1.5x scale
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.