Finding the Fourth Proportional to 219,092,863.68, 302,357,599.68 and 121,307,728.32
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Solution
The fourth proportional to 219,092,863.68, 302,357,599.68 and 121,307,728.32 is: 167,409,896.16
Step by Step Solution
- Step 1: Write the proportion equation
219,092,863.68 : 302,357,599.68 = 121,307,728.32 : x - Step 2: Convert to fraction form
219,092,863.68/302,357,599.68 = 121,307,728.32/x - Step 3: Cross multiply
219,092,863.68x = 302,357,599.68 × 121,307,728.32 - Step 4: Simplify right side
219,092,863.68x = 36,678,313,557,468,760 - Step 5: Solve for x
x = 36,678,313,557,468,760/219,092,863.68 - Step 6: Final answer
x = 167,409,896.16
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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.