Finding the Fourth Proportional to 605,103,617.30, 907,655,425.95 and 519,010,175.30
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Solution
The fourth proportional to 605,103,617.30, 907,655,425.95 and 519,010,175.30 is: 778,515,262.95
Step by Step Solution
- Step 1: Write the proportion equation
605,103,617.30 : 907,655,425.95 = 519,010,175.30 : x - Step 2: Convert to fraction form
605,103,617.30/907,655,425.95 = 519,010,175.30/x - Step 3: Cross multiply
605,103,617.30x = 907,655,425.95 × 519,010,175.30 - Step 4: Simplify right side
605,103,617.30x = 471,082,401,734,305,728 - Step 5: Solve for x
x = 471,082,401,734,305,728/605,103,617.30 - Step 6: Final answer
x = 778,515,262.95
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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.