Finding the Fourth Proportional to 258,833,444.27, 357,198,967.84 and 153,077,515.65
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Solution
The fourth proportional to 258,833,444.27, 357,198,967.84 and 153,077,515.65 is: 211,252,184.75
Step by Step Solution
- Step 1: Write the proportion equation
258,833,444.27 : 357,198,967.84 = 153,077,515.65 : x - Step 2: Convert to fraction form
258,833,444.27/357,198,967.84 = 153,077,515.65/x - Step 3: Cross multiply
258,833,444.27x = 357,198,967.84 × 153,077,515.65 - Step 4: Simplify right side
258,833,444.27x = 54,679,130,588,382,064 - Step 5: Solve for x
x = 54,679,130,588,382,064/258,833,444.27 - Step 6: Final answer
x = 211,252,184.75
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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.