Finding the Fourth Proportional to 15,312,491.04, 21,131,716.16 and 8,787,314.08
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Solution
The fourth proportional to 15,312,491.04, 21,131,716.16 and 8,787,314.08 is: 12,126,768.04
Step by Step Solution
- Step 1: Write the proportion equation
15,312,491.04 : 21,131,716.16 = 8,787,314.08 : x - Step 2: Convert to fraction form
15,312,491.04/21,131,716.16 = 8,787,314.08/x - Step 3: Cross multiply
15,312,491.04x = 21,131,716.16 × 8,787,314.08 - Step 4: Simplify right side
15,312,491.04x = 185,691,026,947,331.53 - Step 5: Solve for x
x = 185,691,026,947,331.53/15,312,491.04 - Step 6: Final answer
x = 12,126,768.04
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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.