Finding the Fourth Proportional to 776,143,310.70, 1,164,214,966.05 and 623,088,302.70
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Solution
The fourth proportional to 776,143,310.70, 1,164,214,966.05 and 623,088,302.70 is: 934,632,454.05
Step by Step Solution
- Step 1: Write the proportion equation
776,143,310.70 : 1,164,214,966.05 = 623,088,302.70 : x - Step 2: Convert to fraction form
776,143,310.70/1,164,214,966.05 = 623,088,302.70/x - Step 3: Cross multiply
776,143,310.70x = 1,164,214,966.05 × 623,088,302.70 - Step 4: Simplify right side
776,143,310.70x = 725,408,727,174,032,640 - Step 5: Solve for x
x = 725,408,727,174,032,640/776,143,310.70 - Step 6: Final answer
x = 934,632,454.05
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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.