Finding the Fourth Proportional to 190,851,503.10, 263,386,350.26 and 143,725,432.68
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Solution
The fourth proportional to 190,851,503.10, 263,386,350.26 and 143,725,432.68 is: 198,349,588.75
Step by Step Solution
- Step 1: Write the proportion equation
190,851,503.10 : 263,386,350.26 = 143,725,432.68 : x - Step 2: Convert to fraction form
190,851,503.10/263,386,350.26 = 143,725,432.68/x - Step 3: Cross multiply
190,851,503.10x = 263,386,350.26 × 143,725,432.68 - Step 4: Simplify right side
190,851,503.10x = 37,855,317,153,124,528 - Step 5: Solve for x
x = 37,855,317,153,124,528/190,851,503.10 - Step 6: Final answer
x = 198,349,588.75
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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.