Finding the Fourth Proportional to 128,857,442.04, 177,823,299.10 and 70,910,690.04
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Solution
The fourth proportional to 128,857,442.04, 177,823,299.10 and 70,910,690.04 is: 97,856,768.26
Step by Step Solution
- Step 1: Write the proportion equation
128,857,442.04 : 177,823,299.10 = 70,910,690.04 : x - Step 2: Convert to fraction form
128,857,442.04/177,823,299.10 = 70,910,690.04/x - Step 3: Cross multiply
128,857,442.04x = 177,823,299.10 × 70,910,690.04 - Step 4: Simplify right side
128,857,442.04x = 12,609,572,844,370,312 - Step 5: Solve for x
x = 12,609,572,844,370,312/128,857,442.04 - Step 6: Final answer
x = 97,856,768.26
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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.