Finding the Fourth Proportional to 6,579,619,964.64, 9,869,748,840.72 and 2,157,648,207.12
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Solution
The fourth proportional to 6,579,619,964.64, 9,869,748,840.72 and 2,157,648,207.12 is: 3,236,576,885.19
Step by Step Solution
- Step 1: Write the proportion equation
6,579,619,964.64 : 9,869,748,840.72 = 2,157,648,207.12 : x - Step 2: Convert to fraction form
6,579,619,964.64/9,869,748,840.72 = 2,157,648,207.12/x - Step 3: Cross multiply
6,579,619,964.64x = 9,869,748,840.72 × 2,157,648,207.12 - Step 4: Simplify right side
6,579,619,964.64x = 21,295,445,890,904,203,264 - Step 5: Solve for x
x = 21,295,445,890,904,203,264/6,579,619,964.64 - Step 6: Final answer
x = 3,236,576,885.19
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.