Finding the Fourth Proportional to 1,635,165,787.80, 2,452,748,681.70 and 806,516,408.55
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Solution
The fourth proportional to 1,635,165,787.80, 2,452,748,681.70 and 806,516,408.55 is: 1,209,774,612.83
Step by Step Solution
- Step 1: Write the proportion equation
1,635,165,787.80 : 2,452,748,681.70 = 806,516,408.55 : x - Step 2: Convert to fraction form
1,635,165,787.80/2,452,748,681.70 = 806,516,408.55/x - Step 3: Cross multiply
1,635,165,787.80x = 2,452,748,681.70 × 806,516,408.55 - Step 4: Simplify right side
1,635,165,787.80x = 1,978,182,057,840,430,848 - Step 5: Solve for x
x = 1,978,182,057,840,430,848/1,635,165,787.80 - Step 6: Final answer
x = 1,209,774,612.83
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.