Finding the Fourth Proportional to 579,492,724.70, 869,239,087.05 and 349,343,342.30
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Solution
The fourth proportional to 579,492,724.70, 869,239,087.05 and 349,343,342.30 is: 524,015,013.45
Step by Step Solution
- Step 1: Write the proportion equation
579,492,724.70 : 869,239,087.05 = 349,343,342.30 : x - Step 2: Convert to fraction form
579,492,724.70/869,239,087.05 = 349,343,342.30/x - Step 3: Cross multiply
579,492,724.70x = 869,239,087.05 × 349,343,342.30 - Step 4: Simplify right side
579,492,724.70x = 303,662,887,927,847,616 - Step 5: Solve for x
x = 303,662,887,927,847,616/579,492,724.70 - Step 6: Final answer
x = 524,015,013.45
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Double scale
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Similar ratio
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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.