Finding the Fourth Proportional to 10,368,046.45, 15,552,069.68 and 8,688,430.45
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Solution
The fourth proportional to 10,368,046.45, 15,552,069.68 and 8,688,430.45 is: 13,032,645.68
Step by Step Solution
- Step 1: Write the proportion equation
10,368,046.45 : 15,552,069.68 = 8,688,430.45 : x - Step 2: Convert to fraction form
10,368,046.45/15,552,069.68 = 8,688,430.45/x - Step 3: Cross multiply
10,368,046.45x = 15,552,069.68 × 8,688,430.45 - Step 4: Simplify right side
10,368,046.45x = 135,123,075,768,233.73 - Step 5: Solve for x
x = 135,123,075,768,233.73/10,368,046.45 - Step 6: Final answer
x = 13,032,645.68
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.