Finding the Fourth Proportional to 9,987,948,632.64, 13,772,325,936.96 and 6,365,236,373.40
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Solution
The fourth proportional to 9,987,948,632.64, 13,772,325,936.96 and 6,365,236,373.40 is: 8,776,988,471.26
Step by Step Solution
- Step 1: Write the proportion equation
9,987,948,632.64 : 13,772,325,936.96 = 6,365,236,373.40 : x - Step 2: Convert to fraction form
9,987,948,632.64/13,772,325,936.96 = 6,365,236,373.40/x - Step 3: Cross multiply
9,987,948,632.64x = 13,772,325,936.96 × 6,365,236,373.40 - Step 4: Simplify right side
9,987,948,632.64x = 87,664,110,000,258,023,424 - Step 5: Solve for x
x = 87,664,110,000,258,023,424/9,987,948,632.64 - Step 6: Final answer
x = 8,776,988,471.26
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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.