Finding the Fourth Proportional to 885,736,013.70, 1,328,604,020.55 and 656,153,501.70
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Solution
The fourth proportional to 885,736,013.70, 1,328,604,020.55 and 656,153,501.70 is: 984,230,252.55
Step by Step Solution
- Step 1: Write the proportion equation
885,736,013.70 : 1,328,604,020.55 = 656,153,501.70 : x - Step 2: Convert to fraction form
885,736,013.70/1,328,604,020.55 = 656,153,501.70/x - Step 3: Cross multiply
885,736,013.70x = 1,328,604,020.55 × 656,153,501.70 - Step 4: Simplify right side
885,736,013.70x = 871,768,180,456,581,248 - Step 5: Solve for x
x = 871,768,180,456,581,248/885,736,013.70 - Step 6: Final answer
x = 984,230,252.55
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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.