Finding the Fourth Proportional to 27,864,994.78, 38,454,970.35 and 15,475,145.14
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Solution
The fourth proportional to 27,864,994.78, 38,454,970.35 and 15,475,145.14 is: 21,356,409.80
Step by Step Solution
- Step 1: Write the proportion equation
27,864,994.78 : 38,454,970.35 = 15,475,145.14 : x - Step 2: Convert to fraction form
27,864,994.78/38,454,970.35 = 15,475,145.14/x - Step 3: Cross multiply
27,864,994.78x = 38,454,970.35 × 15,475,145.14 - Step 4: Simplify right side
27,864,994.78x = 595,096,247,520,646.62 - Step 5: Solve for x
x = 595,096,247,520,646.62/27,864,994.78 - Step 6: Final answer
x = 21,356,409.80
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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.