Finding the Fourth Proportional to 21,411,154.12, 29,547,416.62 and 11,621,595.70
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Solution
The fourth proportional to 21,411,154.12, 29,547,416.62 and 11,621,595.70 is: 16,037,815.06
Step by Step Solution
- Step 1: Write the proportion equation
21,411,154.12 : 29,547,416.62 = 11,621,595.70 : x - Step 2: Convert to fraction form
21,411,154.12/29,547,416.62 = 11,621,595.70/x - Step 3: Cross multiply
21,411,154.12x = 29,547,416.62 × 11,621,595.70 - Step 4: Simplify right side
21,411,154.12x = 343,388,129,937,100.50 - Step 5: Solve for x
x = 343,388,129,937,100.50/21,411,154.12 - Step 6: Final answer
x = 16,037,815.06
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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.