Finding the Fourth Proportional to 122,963,794.52, 169,689,624.45 and 67,209,182.66
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Solution
The fourth proportional to 122,963,794.52, 169,689,624.45 and 67,209,182.66 is: 92,748,446.88
Step by Step Solution
- Step 1: Write the proportion equation
122,963,794.52 : 169,689,624.45 = 67,209,182.66 : x - Step 2: Convert to fraction form
122,963,794.52/169,689,624.45 = 67,209,182.66/x - Step 3: Cross multiply
122,963,794.52x = 169,689,624.45 × 67,209,182.66 - Step 4: Simplify right side
122,963,794.52x = 11,404,700,964,318,404 - Step 5: Solve for x
x = 11,404,700,964,318,404/122,963,794.52 - Step 6: Final answer
x = 92,748,446.88
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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.