Finding the Fourth Proportional to 1,361,486,326.77, 1,878,901,246.49 and 758,711,116.71
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Solution
The fourth proportional to 1,361,486,326.77, 1,878,901,246.49 and 758,711,116.71 is: 1,047,049,268.79
Step by Step Solution
- Step 1: Write the proportion equation
1,361,486,326.77 : 1,878,901,246.49 = 758,711,116.71 : x - Step 2: Convert to fraction form
1,361,486,326.77/1,878,901,246.49 = 758,711,116.71/x - Step 3: Cross multiply
1,361,486,326.77x = 1,878,901,246.49 × 758,711,116.71 - Step 4: Simplify right side
1,361,486,326.77x = 1,425,543,262,908,445,184 - Step 5: Solve for x
x = 1,425,543,262,908,445,184/1,361,486,326.77 - Step 6: Final answer
x = 1,047,049,268.79
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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.