Finding the Fourth Proportional to 1,209,239,633,586.90, 1,668,750,630,521.60 and 653,044,706,979.62
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Solution
The fourth proportional to 1,209,239,633,586.90, 1,668,750,630,521.60 and 653,044,706,979.62 is: 901,201,661,161.66
Step by Step Solution
- Step 1: Write the proportion equation
1,209,239,633,586.90 : 1,668,750,630,521.60 = 653,044,706,979.62 : x - Step 2: Convert to fraction form
1,209,239,633,586.90/1,668,750,630,521.60 = 653,044,706,979.62/x - Step 3: Cross multiply
1,209,239,633,586.90x = 1,668,750,630,521.60 × 653,044,706,979.62 - Step 4: Simplify right side
1,209,239,633,586.90x = 1,089,768,766,531,034,511,572,992 - Step 5: Solve for x
x = 1,089,768,766,531,034,511,572,992/1,209,239,633,586.90 - Step 6: Final answer
x = 901,201,661,161.66
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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.