Finding the Fourth Proportional to 21,097,454.13, 31,605,233.94 and 15,547,911.12
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Solution
The fourth proportional to 21,097,454.13, 31,605,233.94 and 15,547,911.12 is: 23,291,690.32
Step by Step Solution
- Step 1: Write the proportion equation
21,097,454.13 : 31,605,233.94 = 15,547,911.12 : x - Step 2: Convert to fraction form
21,097,454.13/31,605,233.94 = 15,547,911.12/x - Step 3: Cross multiply
21,097,454.13x = 31,605,233.94 × 15,547,911.12 - Step 4: Simplify right side
21,097,454.13x = 491,395,368,225,927.44 - Step 5: Solve for x
x = 491,395,368,225,927.44/21,097,454.13 - Step 6: Final answer
x = 23,291,690.32
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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.