Finding the Fourth Proportional to 2,125,765,801.20, 3,188,648,701.80 and 651,893,903.85
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Solution
The fourth proportional to 2,125,765,801.20, 3,188,648,701.80 and 651,893,903.85 is: 977,840,855.78
Step by Step Solution
- Step 1: Write the proportion equation
2,125,765,801.20 : 3,188,648,701.80 = 651,893,903.85 : x - Step 2: Convert to fraction form
2,125,765,801.20/3,188,648,701.80 = 651,893,903.85/x - Step 3: Cross multiply
2,125,765,801.20x = 3,188,648,701.80 × 651,893,903.85 - Step 4: Simplify right side
2,125,765,801.20x = 2,078,660,650,222,636,800 - Step 5: Solve for x
x = 2,078,660,650,222,636,800/2,125,765,801.20 - Step 6: Final answer
x = 977,840,855.78
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1.5x scale
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.