Finding the Fourth Proportional to 134,129,213.17, 185,071,178.99 and 78,363,863.51
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Solution
The fourth proportional to 134,129,213.17, 185,071,178.99 and 78,363,863.51 is: 108,126,278.14
Step by Step Solution
- Step 1: Write the proportion equation
134,129,213.17 : 185,071,178.99 = 78,363,863.51 : x - Step 2: Convert to fraction form
134,129,213.17/185,071,178.99 = 78,363,863.51/x - Step 3: Cross multiply
134,129,213.17x = 185,071,178.99 × 78,363,863.51 - Step 4: Simplify right side
134,129,213.17x = 14,502,892,609,877,530 - Step 5: Solve for x
x = 14,502,892,609,877,530/134,129,213.17 - Step 6: Final answer
x = 108,126,278.14
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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.