Finding the Fourth Proportional to 15,547,372.16, 21,455,317.92 and 8,671,848.96
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Solution
The fourth proportional to 15,547,372.16, 21,455,317.92 and 8,671,848.96 is: 11,967,120.52
Step by Step Solution
- Step 1: Write the proportion equation
15,547,372.16 : 21,455,317.92 = 8,671,848.96 : x - Step 2: Convert to fraction form
15,547,372.16/21,455,317.92 = 8,671,848.96/x - Step 3: Cross multiply
15,547,372.16x = 21,455,317.92 × 8,671,848.96 - Step 4: Simplify right side
15,547,372.16x = 186,057,276,391,021.41 - Step 5: Solve for x
x = 186,057,276,391,021.41/15,547,372.16 - Step 6: Final answer
x = 11,967,120.52
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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.