Finding the Fourth Proportional to 1,068,290,216.42, 1,474,249,154.58 and 591,988,541.31
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Solution
The fourth proportional to 1,068,290,216.42, 1,474,249,154.58 and 591,988,541.31 is: 816,948,983.65
Step by Step Solution
- Step 1: Write the proportion equation
1,068,290,216.42 : 1,474,249,154.58 = 591,988,541.31 : x - Step 2: Convert to fraction form
1,068,290,216.42/1,474,249,154.58 = 591,988,541.31/x - Step 3: Cross multiply
1,068,290,216.42x = 1,474,249,154.58 × 591,988,541.31 - Step 4: Simplify right side
1,068,290,216.42x = 872,738,606,547,314,816 - Step 5: Solve for x
x = 872,738,606,547,314,816/1,068,290,216.42 - Step 6: Final answer
x = 816,948,983.65
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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.