Finding the Fourth Proportional to 1,607,802,891.40, 2,411,704,337.10 and 687,772,232.20
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Solution
The fourth proportional to 1,607,802,891.40, 2,411,704,337.10 and 687,772,232.20 is: 1,031,658,348.30
Step by Step Solution
- Step 1: Write the proportion equation
1,607,802,891.40 : 2,411,704,337.10 = 687,772,232.20 : x - Step 2: Convert to fraction form
1,607,802,891.40/2,411,704,337.10 = 687,772,232.20/x - Step 3: Cross multiply
1,607,802,891.40x = 2,411,704,337.10 × 687,772,232.20 - Step 4: Simplify right side
1,607,802,891.40x = 1,658,703,275,333,688,320 - Step 5: Solve for x
x = 1,658,703,275,333,688,320/1,607,802,891.40 - Step 6: Final answer
x = 1,031,658,348.30
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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.