Finding the Fourth Proportional to 15,088,992.69, 20,823,312.88 and 8,474,746.74
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Solution
The fourth proportional to 15,088,992.69, 20,823,312.88 and 8,474,746.74 is: 11,695,432.99
Step by Step Solution
- Step 1: Write the proportion equation
15,088,992.69 : 20,823,312.88 = 8,474,746.74 : x - Step 2: Convert to fraction form
15,088,992.69/20,823,312.88 = 8,474,746.74/x - Step 3: Cross multiply
15,088,992.69x = 20,823,312.88 × 8,474,746.74 - Step 4: Simplify right side
15,088,992.69x = 176,472,302,945,780 - Step 5: Solve for x
x = 176,472,302,945,780/15,088,992.69 - Step 6: Final answer
x = 11,695,432.99
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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.