Finding the Fourth Proportional to 3,578,414,355.92, 4,938,246,118.20 and 1,970,905,794.80
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Solution
The fourth proportional to 3,578,414,355.92, 4,938,246,118.20 and 1,970,905,794.80 is: 2,719,868,892.32
Step by Step Solution
- Step 1: Write the proportion equation
3,578,414,355.92 : 4,938,246,118.20 = 1,970,905,794.80 : x - Step 2: Convert to fraction form
3,578,414,355.92/4,938,246,118.20 = 1,970,905,794.80/x - Step 3: Cross multiply
3,578,414,355.92x = 4,938,246,118.20 × 1,970,905,794.80 - Step 4: Simplify right side
3,578,414,355.92x = 9,732,817,890,508,984,320 - Step 5: Solve for x
x = 9,732,817,890,508,984,320/3,578,414,355.92 - Step 6: Final answer
x = 2,719,868,892.32
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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.