Finding the Fourth Proportional to 68,995,419.40, 103,493,129.10 and 58,736,639.80
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Solution
The fourth proportional to 68,995,419.40, 103,493,129.10 and 58,736,639.80 is: 88,104,959.70
Step by Step Solution
- Step 1: Write the proportion equation
68,995,419.40 : 103,493,129.10 = 58,736,639.80 : x - Step 2: Convert to fraction form
68,995,419.40/103,493,129.10 = 58,736,639.80/x - Step 3: Cross multiply
68,995,419.40x = 103,493,129.10 × 58,736,639.80 - Step 4: Simplify right side
68,995,419.40x = 6,078,838,645,721,598 - Step 5: Solve for x
x = 6,078,838,645,721,598/68,995,419.40 - Step 6: Final answer
x = 88,104,959.70
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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.