Finding the Fourth Proportional to 9,153,140.33, 12,630,498.78 and 5,431,329.99
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Solution
The fourth proportional to 9,153,140.33, 12,630,498.78 and 5,431,329.99 is: 7,494,739.98
Step by Step Solution
- Step 1: Write the proportion equation
9,153,140.33 : 12,630,498.78 = 5,431,329.99 : x - Step 2: Convert to fraction form
9,153,140.33/12,630,498.78 = 5,431,329.99/x - Step 3: Cross multiply
9,153,140.33x = 12,630,498.78 × 5,431,329.99 - Step 4: Simplify right side
9,153,140.33x = 68,600,406,735,741.59 - Step 5: Solve for x
x = 68,600,406,735,741.59/9,153,140.33 - Step 6: Final answer
x = 7,494,739.98
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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.