Finding the Fourth Proportional to 605,103,639.80, 907,655,459.70 and 519,010,197.80
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Solution
The fourth proportional to 605,103,639.80, 907,655,459.70 and 519,010,197.80 is: 778,515,296.70
Step by Step Solution
- Step 1: Write the proportion equation
605,103,639.80 : 907,655,459.70 = 519,010,197.80 : x - Step 2: Convert to fraction form
605,103,639.80/907,655,459.70 = 519,010,197.80/x - Step 3: Cross multiply
605,103,639.80x = 907,655,459.70 × 519,010,197.80 - Step 4: Simplify right side
605,103,639.80x = 471,082,439,673,146,944 - Step 5: Solve for x
x = 471,082,439,673,146,944/605,103,639.80 - Step 6: Final answer
x = 778,515,296.70
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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.