Finding the Fourth Proportional to 639,763,260.09, 959,644,890.14 and 155,089,068.09
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Solution
The fourth proportional to 639,763,260.09, 959,644,890.14 and 155,089,068.09 is: 232,633,602.14
Step by Step Solution
- Step 1: Write the proportion equation
639,763,260.09 : 959,644,890.14 = 155,089,068.09 : x - Step 2: Convert to fraction form
639,763,260.09/959,644,890.14 = 155,089,068.09/x - Step 3: Cross multiply
639,763,260.09x = 959,644,890.14 × 155,089,068.09 - Step 4: Simplify right side
639,763,260.09x = 148,830,431,708,367,584 - Step 5: Solve for x
x = 148,830,431,708,367,584/639,763,260.09 - Step 6: Final answer
x = 232,633,602.14
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Similar ratio
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1.5x scale
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.