Finding the Fourth Proportional to 641,428,405.08, 885,171,199.08 and 348,072,973.08
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Solution
The fourth proportional to 641,428,405.08, 885,171,199.08 and 348,072,973.08 is: 480,340,702.89
Step by Step Solution
- Step 1: Write the proportion equation
641,428,405.08 : 885,171,199.08 = 348,072,973.08 : x - Step 2: Convert to fraction form
641,428,405.08/885,171,199.08 = 348,072,973.08/x - Step 3: Cross multiply
641,428,405.08x = 885,171,199.08 × 348,072,973.08 - Step 4: Simplify right side
641,428,405.08x = 308,104,170,948,564,160 - Step 5: Solve for x
x = 308,104,170,948,564,160/641,428,405.08 - Step 6: Final answer
x = 480,340,702.89
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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.