Finding the Fourth Proportional to 708,866,560.20, 1,063,299,840.30 and 417,434,521.80
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Solution
The fourth proportional to 708,866,560.20, 1,063,299,840.30 and 417,434,521.80 is: 626,151,782.70
Step by Step Solution
- Step 1: Write the proportion equation
708,866,560.20 : 1,063,299,840.30 = 417,434,521.80 : x - Step 2: Convert to fraction form
708,866,560.20/1,063,299,840.30 = 417,434,521.80/x - Step 3: Cross multiply
708,866,560.20x = 1,063,299,840.30 × 417,434,521.80 - Step 4: Simplify right side
708,866,560.20x = 443,858,060,365,646,848 - Step 5: Solve for x
x = 443,858,060,365,646,848/708,866,560.20 - Step 6: Final answer
x = 626,151,782.70
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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.