Finding the Fourth Proportional to 964,125,591.18, 1,329,148,374.59 and 646,642,571.68
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Solution
The fourth proportional to 964,125,591.18, 1,329,148,374.59 and 646,642,571.68 is: 891,464,691.89
Step by Step Solution
- Step 1: Write the proportion equation
964,125,591.18 : 1,329,148,374.59 = 646,642,571.68 : x - Step 2: Convert to fraction form
964,125,591.18/1,329,148,374.59 = 646,642,571.68/x - Step 3: Cross multiply
964,125,591.18x = 1,329,148,374.59 × 646,642,571.68 - Step 4: Simplify right side
964,125,591.18x = 859,483,923,084,937,984 - Step 5: Solve for x
x = 859,483,923,084,937,984/964,125,591.18 - Step 6: Final answer
x = 891,464,691.89
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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.