Finding the Third Proportional to 1,388,791,878 and 2,115,746,438
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Solution
The third proportional to 1,388,791,878 and 2,115,746,438 is: 3,223,220,887.75
Step by Step Solution
- Step 1: Write the proportion equation
1,388,791,878 : 2,115,746,438 = 2,115,746,438 : x - Step 2: Convert to fraction form
1,388,791,878/2,115,746,438 = 2,115,746,438/x - Step 3: Cross multiply
1,388,791,878x = 2,115,746,438 × 2,115,746,438 - Step 4: Simplify right side
1,388,791,878x = 4,476,382,989,909,687,808 - Step 5: Solve for x
x = 4,476,382,989,909,687,808/1,388,791,878 - Step 6: Final answer
x = 3,223,220,887.75
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Why These Related Problems?
These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.