Finding the Fourth Proportional to 912,383,999.10, 1,368,575,998.65 and 740,391,320.70
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Solution
The fourth proportional to 912,383,999.10, 1,368,575,998.65 and 740,391,320.70 is: 1,110,586,981.05
Step by Step Solution
- Step 1: Write the proportion equation
912,383,999.10 : 1,368,575,998.65 = 740,391,320.70 : x - Step 2: Convert to fraction form
912,383,999.10/1,368,575,998.65 = 740,391,320.70/x - Step 3: Cross multiply
912,383,999.10x = 1,368,575,998.65 × 740,391,320.70 - Step 4: Simplify right side
912,383,999.10x = 1,013,281,791,118,795,008 - Step 5: Solve for x
x = 1,013,281,791,118,795,008/912,383,999.10 - Step 6: Final answer
x = 1,110,586,981.05
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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.