Finding the Fourth Proportional to 85,937,657.72, 118,368,054.99 and 66,053,398.23
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Solution
The fourth proportional to 85,937,657.72, 118,368,054.99 and 66,053,398.23 is: 90,980,048.58
Step by Step Solution
- Step 1: Write the proportion equation
85,937,657.72 : 118,368,054.99 = 66,053,398.23 : x - Step 2: Convert to fraction form
85,937,657.72/118,368,054.99 = 66,053,398.23/x - Step 3: Cross multiply
85,937,657.72x = 118,368,054.99 × 66,053,398.23 - Step 4: Simplify right side
85,937,657.72x = 7,818,612,273,965,008 - Step 5: Solve for x
x = 7,818,612,273,965,008/85,937,657.72 - Step 6: Final answer
x = 90,980,048.58
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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.