Finding the Fourth Proportional to 986,923,996.65, 1,480,374,577.08 and 239,944,007.07
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Solution
The fourth proportional to 986,923,996.65, 1,480,374,577.08 and 239,944,007.07 is: 359,913,234.65
Step by Step Solution
- Step 1: Write the proportion equation
986,923,996.65 : 1,480,374,577.08 = 239,944,007.07 : x - Step 2: Convert to fraction form
986,923,996.65/1,480,374,577.08 = 239,944,007.07/x - Step 3: Cross multiply
986,923,996.65x = 1,480,374,577.08 × 239,944,007.07 - Step 4: Simplify right side
986,923,996.65x = 355,207,007,989,131,776 - Step 5: Solve for x
x = 355,207,007,989,131,776/986,923,996.65 - Step 6: Final answer
x = 359,913,234.65
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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.