Finding the Fourth Proportional to 7,920,882,006.10, 11,881,323,009.15 and 6,642,394,392.40
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Solution
The fourth proportional to 7,920,882,006.10, 11,881,323,009.15 and 6,642,394,392.40 is: 9,963,591,588.60
Step by Step Solution
- Step 1: Write the proportion equation
7,920,882,006.10 : 11,881,323,009.15 = 6,642,394,392.40 : x - Step 2: Convert to fraction form
7,920,882,006.10/11,881,323,009.15 = 6,642,394,392.40/x - Step 3: Cross multiply
7,920,882,006.10x = 11,881,323,009.15 × 6,642,394,392.40 - Step 4: Simplify right side
7,920,882,006.10x = 78,920,433,330,271,043,584 - Step 5: Solve for x
x = 78,920,433,330,271,043,584/7,920,882,006.10 - Step 6: Final answer
x = 9,963,591,588.60
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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.