Finding the Fourth Proportional to 993,540,509.60, 1,371,094,970.98 and 547,519,876.05
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Solution
The fourth proportional to 993,540,509.60, 1,371,094,970.98 and 547,519,876.05 is: 755,582,425.99
Step by Step Solution
- Step 1: Write the proportion equation
993,540,509.60 : 1,371,094,970.98 = 547,519,876.05 : x - Step 2: Convert to fraction form
993,540,509.60/1,371,094,970.98 = 547,519,876.05/x - Step 3: Cross multiply
993,540,509.60x = 1,371,094,970.98 × 547,519,876.05 - Step 4: Simplify right side
993,540,509.60x = 750,701,748,562,379,008 - Step 5: Solve for x
x = 750,701,748,562,379,008/993,540,509.60 - Step 6: Final answer
x = 755,582,425.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.