Finding the Fourth Proportional to 1,395,089,590.73, 2,091,907,764.99 and 657,961,575.93
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Solution
The fourth proportional to 1,395,089,590.73, 2,091,907,764.99 and 657,961,575.93 is: 986,599,669.95
Step by Step Solution
- Step 1: Write the proportion equation
1,395,089,590.73 : 2,091,907,764.99 = 657,961,575.93 : x - Step 2: Convert to fraction form
1,395,089,590.73/2,091,907,764.99 = 657,961,575.93/x - Step 3: Cross multiply
1,395,089,590.73x = 2,091,907,764.99 × 657,961,575.93 - Step 4: Simplify right side
1,395,089,590.73x = 1,376,394,929,753,024,256 - Step 5: Solve for x
x = 1,376,394,929,753,024,256/1,395,089,590.73 - Step 6: Final answer
x = 986,599,669.95
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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.