Finding the Fourth Proportional to 71,832,698.47, 99,129,120.10 and 38,792,944.44
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Solution
The fourth proportional to 71,832,698.47, 99,129,120.10 and 38,792,944.44 is: 53,534,261.28
Step by Step Solution
- Step 1: Write the proportion equation
71,832,698.47 : 99,129,120.10 = 38,792,944.44 : x - Step 2: Convert to fraction form
71,832,698.47/99,129,120.10 = 38,792,944.44/x - Step 3: Cross multiply
71,832,698.47x = 99,129,120.10 × 38,792,944.44 - Step 4: Simplify right side
71,832,698.47x = 3,845,510,448,328,404.50 - Step 5: Solve for x
x = 3,845,510,448,328,404.50/71,832,698.47 - Step 6: Final answer
x = 53,534,261.28
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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.