Finding the Fourth Proportional to 67,608,947.36, 93,302,458.80 and 38,239,705.28
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Solution
The fourth proportional to 67,608,947.36, 93,302,458.80 and 38,239,705.28 is: 52,771,987.52
Step by Step Solution
- Step 1: Write the proportion equation
67,608,947.36 : 93,302,458.80 = 38,239,705.28 : x - Step 2: Convert to fraction form
67,608,947.36/93,302,458.80 = 38,239,705.28/x - Step 3: Cross multiply
67,608,947.36x = 93,302,458.80 × 38,239,705.28 - Step 4: Simplify right side
67,608,947.36x = 3,567,858,526,411,342.50 - Step 5: Solve for x
x = 3,567,858,526,411,342.50/67,608,947.36 - Step 6: Final answer
x = 52,771,987.52
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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.