Finding the Fourth Proportional to 130,215,461.63, 179,695,081.99 and 70,675,480.15
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Solution
The fourth proportional to 130,215,461.63, 179,695,081.99 and 70,675,480.15 is: 97,530,938.65
Step by Step Solution
- Step 1: Write the proportion equation
130,215,461.63 : 179,695,081.99 = 70,675,480.15 : x - Step 2: Convert to fraction form
130,215,461.63/179,695,081.99 = 70,675,480.15/x - Step 3: Cross multiply
130,215,461.63x = 179,695,081.99 × 70,675,480.15 - Step 4: Simplify right side
130,215,461.63x = 12,700,036,199,963,062 - Step 5: Solve for x
x = 12,700,036,199,963,062/130,215,461.63 - Step 6: Final answer
x = 97,530,938.65
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1.5x scale
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.