Finding the Fourth Proportional to 88,138,300.74, 121,502,663.57 and 61,594,242.63
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Solution
The fourth proportional to 88,138,300.74, 121,502,663.57 and 61,594,242.63 is: 84,910,469.99
Step by Step Solution
- Step 1: Write the proportion equation
88,138,300.74 : 121,502,663.57 = 61,594,242.63 : x - Step 2: Convert to fraction form
88,138,300.74/121,502,663.57 = 61,594,242.63/x - Step 3: Cross multiply
88,138,300.74x = 121,502,663.57 × 61,594,242.63 - Step 4: Simplify right side
88,138,300.74x = 7,483,864,539,358,235 - Step 5: Solve for x
x = 7,483,864,539,358,235/88,138,300.74 - Step 6: Final answer
x = 84,910,469.99
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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.