Finding the Fourth Proportional to 135,769,314.57, 187,381,397.13 and 76,237,293.75
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Solution
The fourth proportional to 135,769,314.57, 187,381,397.13 and 76,237,293.75 is: 105,218,551.49
Step by Step Solution
- Step 1: Write the proportion equation
135,769,314.57 : 187,381,397.13 = 76,237,293.75 : x - Step 2: Convert to fraction form
135,769,314.57/187,381,397.13 = 76,237,293.75/x - Step 3: Cross multiply
135,769,314.57x = 187,381,397.13 × 76,237,293.75 - Step 4: Simplify right side
135,769,314.57x = 14,285,450,616,285,216 - Step 5: Solve for x
x = 14,285,450,616,285,216/135,769,314.57 - Step 6: Final answer
x = 105,218,551.49
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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.