Finding the Fourth Proportional to 787,251,577.44, 1,180,420,506.12 and 372,724,918.80
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Solution
The fourth proportional to 787,251,577.44, 1,180,420,506.12 and 372,724,918.80 is: 558,871,077.43
Step by Step Solution
- Step 1: Write the proportion equation
787,251,577.44 : 1,180,420,506.12 = 372,724,918.80 : x - Step 2: Convert to fraction form
787,251,577.44/1,180,420,506.12 = 372,724,918.80/x - Step 3: Cross multiply
787,251,577.44x = 1,180,420,506.12 × 372,724,918.80 - Step 4: Simplify right side
787,251,577.44x = 439,972,137,293,431,872 - Step 5: Solve for x
x = 439,972,137,293,431,872/787,251,577.44 - Step 6: Final answer
x = 558,871,077.43
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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.