Finding the Fourth Proportional to 874,611,051.26, 1,206,977,590.16 and 522,217,836.14
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Solution
The fourth proportional to 874,611,051.26, 1,206,977,590.16 and 522,217,836.14 is: 720,669,175.74
Step by Step Solution
- Step 1: Write the proportion equation
874,611,051.26 : 1,206,977,590.16 = 522,217,836.14 : x - Step 2: Convert to fraction form
874,611,051.26/1,206,977,590.16 = 522,217,836.14/x - Step 3: Cross multiply
874,611,051.26x = 1,206,977,590.16 × 522,217,836.14 - Step 4: Simplify right side
874,611,051.26x = 630,305,225,402,827,008 - Step 5: Solve for x
x = 630,305,225,402,827,008/874,611,051.26 - Step 6: Final answer
x = 720,669,175.74
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Double scale
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1.5x scale
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.