Finding the Fourth Proportional to 977,068,985.20, 1,465,603,477.80 and 330,836,729.20
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Solution
The fourth proportional to 977,068,985.20, 1,465,603,477.80 and 330,836,729.20 is: 496,255,093.80
Step by Step Solution
- Step 1: Write the proportion equation
977,068,985.20 : 1,465,603,477.80 = 330,836,729.20 : x - Step 2: Convert to fraction form
977,068,985.20/1,465,603,477.80 = 330,836,729.20/x - Step 3: Cross multiply
977,068,985.20x = 1,465,603,477.80 × 330,836,729.20 - Step 4: Simplify right side
977,068,985.20x = 484,875,460,899,496,768 - Step 5: Solve for x
x = 484,875,460,899,496,768/977,068,985.20 - Step 6: Final answer
x = 496,255,093.80
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Similar ratio
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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.