Finding the Fourth Proportional to 756,809,618.60, 1,135,214,427.90 and 266,076,999.20
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Solution
The fourth proportional to 756,809,618.60, 1,135,214,427.90 and 266,076,999.20 is: 399,115,498.80
Step by Step Solution
- Step 1: Write the proportion equation
756,809,618.60 : 1,135,214,427.90 = 266,076,999.20 : x - Step 2: Convert to fraction form
756,809,618.60/1,135,214,427.90 = 266,076,999.20/x - Step 3: Cross multiply
756,809,618.60x = 1,135,214,427.90 × 266,076,999.20 - Step 4: Simplify right side
756,809,618.60x = 302,054,448,424,176,768 - Step 5: Solve for x
x = 302,054,448,424,176,768/756,809,618.60 - Step 6: Final answer
x = 399,115,498.80
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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.