Finding the Fourth Proportional to 1,013,883,151.66, 1,398,713,053.92 and 611,772,611.06
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Solution
The fourth proportional to 1,013,883,151.66, 1,398,713,053.92 and 611,772,611.06 is: 843,977,272.65
Step by Step Solution
- Step 1: Write the proportion equation
1,013,883,151.66 : 1,398,713,053.92 = 611,772,611.06 : x - Step 2: Convert to fraction form
1,013,883,151.66/1,398,713,053.92 = 611,772,611.06/x - Step 3: Cross multiply
1,013,883,151.66x = 1,398,713,053.92 × 611,772,611.06 - Step 4: Simplify right side
1,013,883,151.66x = 855,694,337,120,344,960 - Step 5: Solve for x
x = 855,694,337,120,344,960/1,013,883,151.66 - Step 6: Final answer
x = 843,977,272.65
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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.