Finding the Fourth Proportional to 9,328,957,788.63, 12,805,434,197.98 and 8,248,006,794.63
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Solution
The fourth proportional to 9,328,957,788.63, 12,805,434,197.98 and 8,248,006,794.63 is: 11,321,662,147.71
Step by Step Solution
- Step 1: Write the proportion equation
9,328,957,788.63 : 12,805,434,197.98 = 8,248,006,794.63 : x - Step 2: Convert to fraction form
9,328,957,788.63/12,805,434,197.98 = 8,248,006,794.63/x - Step 3: Cross multiply
9,328,957,788.63x = 12,805,434,197.98 × 8,248,006,794.63 - Step 4: Simplify right side
9,328,957,788.63x = 105,619,308,273,140,187,136 - Step 5: Solve for x
x = 105,619,308,273,140,187,136/9,328,957,788.63 - Step 6: Final answer
x = 11,321,662,147.71
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.