Finding the Fourth Proportional to 1,567,813,272.39, 2,163,499,985.18 and 862,830,509.09
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Solution
The fourth proportional to 1,567,813,272.39, 2,163,499,985.18 and 862,830,509.09 is: 1,190,660,792.65
Step by Step Solution
- Step 1: Write the proportion equation
1,567,813,272.39 : 2,163,499,985.18 = 862,830,509.09 : x - Step 2: Convert to fraction form
1,567,813,272.39/2,163,499,985.18 = 862,830,509.09/x - Step 3: Cross multiply
1,567,813,272.39x = 2,163,499,985.18 × 862,830,509.09 - Step 4: Simplify right side
1,567,813,272.39x = 1,866,733,793,629,066,752 - Step 5: Solve for x
x = 1,866,733,793,629,066,752/1,567,813,272.39 - Step 6: Final answer
x = 1,190,660,792.65
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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.