Finding the Fourth Proportional to 144,239,058.72, 199,027,885.05 and 81,492,261.84
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Solution
The fourth proportional to 144,239,058.72, 199,027,885.05 and 81,492,261.84 is: 112,446,882.74
Step by Step Solution
- Step 1: Write the proportion equation
144,239,058.72 : 199,027,885.05 = 81,492,261.84 : x - Step 2: Convert to fraction form
144,239,058.72/199,027,885.05 = 81,492,261.84/x - Step 3: Cross multiply
144,239,058.72x = 199,027,885.05 × 81,492,261.84 - Step 4: Simplify right side
144,239,058.72x = 16,219,232,521,956,024 - Step 5: Solve for x
x = 16,219,232,521,956,024/144,239,058.72 - Step 6: Final answer
x = 112,446,882.74
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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.