Finding the Fourth Proportional to 1,060,128,539.80, 1,590,192,809.70 and 413,896,283.80
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Solution
The fourth proportional to 1,060,128,539.80, 1,590,192,809.70 and 413,896,283.80 is: 620,844,425.70
Step by Step Solution
- Step 1: Write the proportion equation
1,060,128,539.80 : 1,590,192,809.70 = 413,896,283.80 : x - Step 2: Convert to fraction form
1,060,128,539.80/1,590,192,809.70 = 413,896,283.80/x - Step 3: Cross multiply
1,060,128,539.80x = 1,590,192,809.70 × 413,896,283.80 - Step 4: Simplify right side
1,060,128,539.80x = 658,174,894,460,310,656 - Step 5: Solve for x
x = 658,174,894,460,310,656/1,060,128,539.80 - Step 6: Final answer
x = 620,844,425.70
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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.