Finding the Fourth Proportional to 430,970,731.26, 646,456,105.47 and 103,446,244.43
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Solution
The fourth proportional to 430,970,731.26, 646,456,105.47 and 103,446,244.43 is: 155,169,368.70
Step by Step Solution
- Step 1: Write the proportion equation
430,970,731.26 : 646,456,105.47 = 103,446,244.43 : x - Step 2: Convert to fraction form
430,970,731.26/646,456,105.47 = 103,446,244.43/x - Step 3: Cross multiply
430,970,731.26x = 646,456,105.47 × 103,446,244.43 - Step 4: Simplify right side
430,970,731.26x = 66,873,456,299,294,296 - Step 5: Solve for x
x = 66,873,456,299,294,296/430,970,731.26 - Step 6: Final answer
x = 155,169,368.70
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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.