Finding the Fourth Proportional to 135,885,763.80, 187,392,551.16 and 91,332,374.76
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Solution
The fourth proportional to 135,885,763.80, 187,392,551.16 and 91,332,374.76 is: 125,951,433.26
Step by Step Solution
- Step 1: Write the proportion equation
135,885,763.80 : 187,392,551.16 = 91,332,374.76 : x - Step 2: Convert to fraction form
135,885,763.80/187,392,551.16 = 91,332,374.76/x - Step 3: Cross multiply
135,885,763.80x = 187,392,551.16 × 91,332,374.76 - Step 4: Simplify right side
135,885,763.80x = 17,115,006,709,777,594 - Step 5: Solve for x
x = 17,115,006,709,777,594/135,885,763.80 - Step 6: Final answer
x = 125,951,433.26
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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.