Finding the Fourth Proportional to 43,268,486.81, 64,911,391.28 and 15,974,946.05
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Solution
The fourth proportional to 43,268,486.81, 64,911,391.28 and 15,974,946.05 is: 23,965,616.78
Step by Step Solution
- Step 1: Write the proportion equation
43,268,486.81 : 64,911,391.28 = 15,974,946.05 : x - Step 2: Convert to fraction form
43,268,486.81/64,911,391.28 = 15,974,946.05/x - Step 3: Cross multiply
43,268,486.81x = 64,911,391.28 × 15,974,946.05 - Step 4: Simplify right side
43,268,486.81x = 1,036,955,973,648,565.75 - Step 5: Solve for x
x = 1,036,955,973,648,565.75/43,268,486.81 - Step 6: Final answer
x = 23,965,616.78
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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.