Finding the Fourth Proportional to 99,569,596.14, 137,314,727.55 and 68,253,155.82
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Solution
The fourth proportional to 99,569,596.14, 137,314,727.55 and 68,253,155.82 is: 94,126,760.17
Step by Step Solution
- Step 1: Write the proportion equation
99,569,596.14 : 137,314,727.55 = 68,253,155.82 : x - Step 2: Convert to fraction form
99,569,596.14/137,314,727.55 = 68,253,155.82/x - Step 3: Cross multiply
99,569,596.14x = 137,314,727.55 × 68,253,155.82 - Step 4: Simplify right side
99,569,596.14x = 9,372,163,495,850,996 - Step 5: Solve for x
x = 9,372,163,495,850,996/99,569,596.14 - Step 6: Final answer
x = 94,126,760.17
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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.