Finding the Fourth Proportional to 9,419,918,964.24, 12,999,575,340.84 and 5,190,982,185
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Solution
The fourth proportional to 9,419,918,964.24, 12,999,575,340.84 and 5,190,982,185 is: 7,163,603,451.69
Step by Step Solution
- Step 1: Write the proportion equation
9,419,918,964.24 : 12,999,575,340.84 = 5,190,982,185 : x - Step 2: Convert to fraction form
9,419,918,964.24/12,999,575,340.84 = 5,190,982,185/x - Step 3: Cross multiply
9,419,918,964.24x = 12,999,575,340.84 × 5,190,982,185 - Step 4: Simplify right side
9,419,918,964.24x = 67,480,564,006,865,739,776 - Step 5: Solve for x
x = 67,480,564,006,865,739,776/9,419,918,964.24 - Step 6: Final answer
x = 7,163,603,451.69
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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.