Finding the Fourth Proportional to 4,972,032,028.80, 7,458,048,043.20 and 3,133,860,278.40
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Solution
The fourth proportional to 4,972,032,028.80, 7,458,048,043.20 and 3,133,860,278.40 is: 4,700,790,417.60
Step by Step Solution
- Step 1: Write the proportion equation
4,972,032,028.80 : 7,458,048,043.20 = 3,133,860,278.40 : x - Step 2: Convert to fraction form
4,972,032,028.80/7,458,048,043.20 = 3,133,860,278.40/x - Step 3: Cross multiply
4,972,032,028.80x = 7,458,048,043.20 × 3,133,860,278.40 - Step 4: Simplify right side
4,972,032,028.80x = 23,372,480,516,983,328,768 - Step 5: Solve for x
x = 23,372,480,516,983,328,768/4,972,032,028.80 - Step 6: Final answer
x = 4,700,790,417.60
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Double scale
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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.