Finding the Fourth Proportional to 98,846,988.57, 136,409,953.84 and 56,466,160.74
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Solution
The fourth proportional to 98,846,988.57, 136,409,953.84 and 56,466,160.74 is: 77,923,935.68
Step by Step Solution
- Step 1: Write the proportion equation
98,846,988.57 : 136,409,953.84 = 56,466,160.74 : x - Step 2: Convert to fraction form
98,846,988.57/136,409,953.84 = 56,466,160.74/x - Step 3: Cross multiply
98,846,988.57x = 136,409,953.84 × 56,466,160.74 - Step 4: Simplify right side
98,846,988.57x = 7,702,546,379,924,255 - Step 5: Solve for x
x = 7,702,546,379,924,255/98,846,988.57 - Step 6: Final answer
x = 77,923,935.68
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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.