Finding the Fourth Proportional to 112,381,811.40, 168,572,717.10 and 73,582,681.80
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Solution
The fourth proportional to 112,381,811.40, 168,572,717.10 and 73,582,681.80 is: 110,374,022.70
Step by Step Solution
- Step 1: Write the proportion equation
112,381,811.40 : 168,572,717.10 = 73,582,681.80 : x - Step 2: Convert to fraction form
112,381,811.40/168,572,717.10 = 73,582,681.80/x - Step 3: Cross multiply
112,381,811.40x = 168,572,717.10 × 73,582,681.80 - Step 4: Simplify right side
112,381,811.40x = 12,404,032,602,530,718 - Step 5: Solve for x
x = 12,404,032,602,530,718/112,381,811.40 - Step 6: Final answer
x = 110,374,022.70
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1.5x scale
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.