Finding the Fourth Proportional to 708,810,622.80, 1,063,211,472.64 and 381,440,342.40
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Solution
The fourth proportional to 708,810,622.80, 1,063,211,472.64 and 381,440,342.40 is: 572,158,112.65
Step by Step Solution
- Step 1: Write the proportion equation
708,810,622.80 : 1,063,211,472.64 = 381,440,342.40 : x - Step 2: Convert to fraction form
708,810,622.80/1,063,211,472.64 = 381,440,342.40/x - Step 3: Cross multiply
708,810,622.80x = 1,063,211,472.64 × 381,440,342.40 - Step 4: Simplify right side
708,810,622.80x = 405,551,748,167,409,792 - Step 5: Solve for x
x = 405,551,748,167,409,792/708,810,622.80 - Step 6: Final answer
x = 572,158,112.65
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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.