Finding the Fourth Proportional to 3,578,414,356.92, 4,938,246,119.58 and 1,970,905,795.80
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Solution
The fourth proportional to 3,578,414,356.92, 4,938,246,119.58 and 1,970,905,795.80 is: 2,719,868,893.70
Step by Step Solution
- Step 1: Write the proportion equation
3,578,414,356.92 : 4,938,246,119.58 = 1,970,905,795.80 : x - Step 2: Convert to fraction form
3,578,414,356.92/4,938,246,119.58 = 1,970,905,795.80/x - Step 3: Cross multiply
3,578,414,356.92x = 4,938,246,119.58 × 1,970,905,795.80 - Step 4: Simplify right side
3,578,414,356.92x = 9,732,817,898,167,080,960 - Step 5: Solve for x
x = 9,732,817,898,167,080,960/3,578,414,356.92 - Step 6: Final answer
x = 2,719,868,893.70
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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.