Finding the Fourth Proportional to 706,316,723.34, 974,709,342.69 and 388,770,180.09
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Solution
The fourth proportional to 706,316,723.34, 974,709,342.69 and 388,770,180.09 is: 536,498,590.75
Step by Step Solution
- Step 1: Write the proportion equation
706,316,723.34 : 974,709,342.69 = 388,770,180.09 : x - Step 2: Convert to fraction form
706,316,723.34/974,709,342.69 = 388,770,180.09/x - Step 3: Cross multiply
706,316,723.34x = 974,709,342.69 × 388,770,180.09 - Step 4: Simplify right side
706,316,723.34x = 378,937,926,692,996,800 - Step 5: Solve for x
x = 378,937,926,692,996,800/706,316,723.34 - Step 6: Final answer
x = 536,498,590.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.