Finding the Fourth Proportional to 1,448,963,487.80, 2,173,445,231.70 and 1,291,751,430.20
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Solution
The fourth proportional to 1,448,963,487.80, 2,173,445,231.70 and 1,291,751,430.20 is: 1,937,627,145.30
Step by Step Solution
- Step 1: Write the proportion equation
1,448,963,487.80 : 2,173,445,231.70 = 1,291,751,430.20 : x - Step 2: Convert to fraction form
1,448,963,487.80/2,173,445,231.70 = 1,291,751,430.20/x - Step 3: Cross multiply
1,448,963,487.80x = 2,173,445,231.70 × 1,291,751,430.20 - Step 4: Simplify right side
1,448,963,487.80x = 2,807,550,986,509,844,992 - Step 5: Solve for x
x = 2,807,550,986,509,844,992/1,448,963,487.80 - Step 6: Final answer
x = 1,937,627,145.30
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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.