Finding the Fourth Proportional to 521,157,788.04, 719,195,133.77 and 283,000,845.09
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Solution
The fourth proportional to 521,157,788.04, 719,195,133.77 and 283,000,845.09 is: 390,539,746.91
Step by Step Solution
- Step 1: Write the proportion equation
521,157,788.04 : 719,195,133.77 = 283,000,845.09 : x - Step 2: Convert to fraction form
521,157,788.04/719,195,133.77 = 283,000,845.09/x - Step 3: Cross multiply
521,157,788.04x = 719,195,133.77 × 283,000,845.09 - Step 4: Simplify right side
521,157,788.04x = 203,532,830,643,884,512 - Step 5: Solve for x
x = 203,532,830,643,884,512/521,157,788.04 - Step 6: Final answer
x = 390,539,746.91
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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.