Finding the Fourth Proportional to 746,757,326.40, 1,120,135,989.60 and 201,497,985.60
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Solution
The fourth proportional to 746,757,326.40, 1,120,135,989.60 and 201,497,985.60 is: 302,246,978.40
Step by Step Solution
- Step 1: Write the proportion equation
746,757,326.40 : 1,120,135,989.60 = 201,497,985.60 : x - Step 2: Convert to fraction form
746,757,326.40/1,120,135,989.60 = 201,497,985.60/x - Step 3: Cross multiply
746,757,326.40x = 1,120,135,989.60 × 201,497,985.60 - Step 4: Simplify right side
746,757,326.40x = 225,705,145,502,462,528 - Step 5: Solve for x
x = 225,705,145,502,462,528/746,757,326.40 - Step 6: Final answer
x = 302,246,978.40
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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.