Finding the Fourth Proportional to 1,580,322,544.40, 2,180,979,034.36 and 875,695,551.32
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Solution
The fourth proportional to 1,580,322,544.40, 2,180,979,034.36 and 875,695,551.32 is: 1,208,534,070.90
Step by Step Solution
- Step 1: Write the proportion equation
1,580,322,544.40 : 2,180,979,034.36 = 875,695,551.32 : x - Step 2: Convert to fraction form
1,580,322,544.40/2,180,979,034.36 = 875,695,551.32/x - Step 3: Cross multiply
1,580,322,544.40x = 2,180,979,034.36 × 875,695,551.32 - Step 4: Simplify right side
1,580,322,544.40x = 1,909,873,637,911,241,728 - Step 5: Solve for x
x = 1,909,873,637,911,241,728/1,580,322,544.40 - Step 6: Final answer
x = 1,208,534,070.90
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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.