Finding the Fourth Proportional to 98,701,153.30, 136,211,848.80 and 54,648,153.10
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Solution
The fourth proportional to 98,701,153.30, 136,211,848.80 and 54,648,153.10 is: 75,416,808.40
Step by Step Solution
- Step 1: Write the proportion equation
98,701,153.30 : 136,211,848.80 = 54,648,153.10 : x - Step 2: Convert to fraction form
98,701,153.30/136,211,848.80 = 54,648,153.10/x - Step 3: Cross multiply
98,701,153.30x = 136,211,848.80 × 54,648,153.10 - Step 4: Simplify right side
98,701,153.30x = 7,443,725,967,256,452 - Step 5: Solve for x
x = 7,443,725,967,256,452/98,701,153.30 - Step 6: Final answer
x = 75,416,808.40
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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.