Finding the Fourth Proportional to 15,497,579.88, 21,386,660.04 and 8,622,060.12
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Solution
The fourth proportional to 15,497,579.88, 21,386,660.04 and 8,622,060.12 is: 11,898,442.86
Step by Step Solution
- Step 1: Write the proportion equation
15,497,579.88 : 21,386,660.04 = 8,622,060.12 : x - Step 2: Convert to fraction form
15,497,579.88/21,386,660.04 = 8,622,060.12/x - Step 3: Cross multiply
15,497,579.88x = 21,386,660.04 × 8,622,060.12 - Step 4: Simplify right side
15,497,579.88x = 184,397,068,630,881.59 - Step 5: Solve for x
x = 184,397,068,630,881.59/15,497,579.88 - Step 6: Final answer
x = 11,898,442.86
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.