Finding the Fourth Proportional to 140,369,544.66, 193,695,058.68 and 77,635,673.84
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Solution
The fourth proportional to 140,369,544.66, 193,695,058.68 and 77,635,673.84 is: 107,128,981.84
Step by Step Solution
- Step 1: Write the proportion equation
140,369,544.66 : 193,695,058.68 = 77,635,673.84 : x - Step 2: Convert to fraction form
140,369,544.66/193,695,058.68 = 77,635,673.84/x - Step 3: Cross multiply
140,369,544.66x = 193,695,058.68 × 77,635,673.84 - Step 4: Simplify right side
140,369,544.66x = 15,037,646,400,100,142 - Step 5: Solve for x
x = 15,037,646,400,100,142/140,369,544.66 - Step 6: Final answer
x = 107,128,981.84
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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.