Finding the Fourth Proportional to 766,646,652.72, 1,149,509,396.73 and 299,751,830.31
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Solution
The fourth proportional to 766,646,652.72, 1,149,509,396.73 and 299,751,830.31 is: 449,447,661.98
Step by Step Solution
- Step 1: Write the proportion equation
766,646,652.72 : 1,149,509,396.73 = 299,751,830.31 : x - Step 2: Convert to fraction form
766,646,652.72/1,149,509,396.73 = 299,751,830.31/x - Step 3: Cross multiply
766,646,652.72x = 1,149,509,396.73 × 299,751,830.31 - Step 4: Simplify right side
766,646,652.72x = 344,567,545,628,361,408 - Step 5: Solve for x
x = 344,567,545,628,361,408/766,646,652.72 - Step 6: Final answer
x = 449,447,661.98
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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.