Finding the Fourth Proportional to 19,906,688.60, 29,860,032.90 and 8,545,203.80
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Solution
The fourth proportional to 19,906,688.60, 29,860,032.90 and 8,545,203.80 is: 12,817,805.70
Step by Step Solution
- Step 1: Write the proportion equation
19,906,688.60 : 29,860,032.90 = 8,545,203.80 : x - Step 2: Convert to fraction form
19,906,688.60/29,860,032.90 = 8,545,203.80/x - Step 3: Cross multiply
19,906,688.60x = 29,860,032.90 × 8,545,203.80 - Step 4: Simplify right side
19,906,688.60x = 255,160,066,605,205.03 - Step 5: Solve for x
x = 255,160,066,605,205.03/19,906,688.60 - Step 6: Final answer
x = 12,817,805.70
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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.