Finding the Fourth Proportional to 19,879,088.80, 29,808,135.60 and 8,506,688.80
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Solution
The fourth proportional to 19,879,088.80, 29,808,135.60 and 8,506,688.80 is: 12,755,541.05
Step by Step Solution
- Step 1: Write the proportion equation
19,879,088.80 : 29,808,135.60 = 8,506,688.80 : x - Step 2: Convert to fraction form
19,879,088.80/29,808,135.60 = 8,506,688.80/x - Step 3: Cross multiply
19,879,088.80x = 29,808,135.60 × 8,506,688.80 - Step 4: Simplify right side
19,879,088.80x = 253,568,533,257,401.31 - Step 5: Solve for x
x = 253,568,533,257,401.31/19,879,088.80 - Step 6: Final answer
x = 12,755,541.05
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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.