Finding the Fourth Proportional to 1,445,273,781.73, 1,994,477,815.88 and 818,742,208.84
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Solution
The fourth proportional to 1,445,273,781.73, 1,994,477,815.88 and 818,742,208.84 is: 1,129,864,246.55
Step by Step Solution
- Step 1: Write the proportion equation
1,445,273,781.73 : 1,994,477,815.88 = 818,742,208.84 : x - Step 2: Convert to fraction form
1,445,273,781.73/1,994,477,815.88 = 818,742,208.84/x - Step 3: Cross multiply
1,445,273,781.73x = 1,994,477,815.88 × 818,742,208.84 - Step 4: Simplify right side
1,445,273,781.73x = 1,632,963,172,455,970,304 - Step 5: Solve for x
x = 1,632,963,172,455,970,304/1,445,273,781.73 - Step 6: Final answer
x = 1,129,864,246.55
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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.