Finding the Fourth Proportional to 561,865,889.94, 775,376,587.02 and 310,987,706.70
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Solution
The fourth proportional to 561,865,889.94, 775,376,587.02 and 310,987,706.70 is: 429,163,953.43
Step by Step Solution
- Step 1: Write the proportion equation
561,865,889.94 : 775,376,587.02 = 310,987,706.70 : x - Step 2: Convert to fraction form
561,865,889.94/775,376,587.02 = 310,987,706.70/x - Step 3: Cross multiply
561,865,889.94x = 775,376,587.02 × 310,987,706.70 - Step 4: Simplify right side
561,865,889.94x = 241,132,586,626,222,784 - Step 5: Solve for x
x = 241,132,586,626,222,784/561,865,889.94 - Step 6: Final answer
x = 429,163,953.43
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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.