Finding the Fourth Proportional to 679,364,384.80, 1,017,534,922.80 and 558,432,032.80
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Solution
The fourth proportional to 679,364,384.80, 1,017,534,922.80 and 558,432,032.80 is: 836,405,481.50
Step by Step Solution
- Step 1: Write the proportion equation
679,364,384.80 : 1,017,534,922.80 = 558,432,032.80 : x - Step 2: Convert to fraction form
679,364,384.80/1,017,534,922.80 = 558,432,032.80/x - Step 3: Cross multiply
679,364,384.80x = 1,017,534,922.80 × 558,432,032.80 - Step 4: Simplify right side
679,364,384.80x = 568,224,095,384,195,008 - Step 5: Solve for x
x = 568,224,095,384,195,008/679,364,384.80 - Step 6: Final answer
x = 836,405,481.50
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Double scale
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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.