Finding the Fourth Proportional to 7,676,688,005.20, 11,515,032,474.36 and 1,860,597,701.20
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Solution
The fourth proportional to 7,676,688,005.20, 11,515,032,474.36 and 1,860,597,701.20 is: 2,790,896,664.88
Step by Step Solution
- Step 1: Write the proportion equation
7,676,688,005.20 : 11,515,032,474.36 = 1,860,597,701.20 : x - Step 2: Convert to fraction form
7,676,688,005.20/11,515,032,474.36 = 1,860,597,701.20/x - Step 3: Cross multiply
7,676,688,005.20x = 11,515,032,474.36 × 1,860,597,701.20 - Step 4: Simplify right side
7,676,688,005.20x = 21,424,842,951,037,566,976 - Step 5: Solve for x
x = 21,424,842,951,037,566,976/7,676,688,005.20 - Step 6: Final answer
x = 2,790,896,664.88
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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.