Finding the Fourth Proportional to 2,172,862,937.97, 2,998,623,192.35 and 1,220,411,259.54
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Solution
The fourth proportional to 2,172,862,937.97, 2,998,623,192.35 and 1,220,411,259.54 is: 1,684,208,167.53
Step by Step Solution
- Step 1: Write the proportion equation
2,172,862,937.97 : 2,998,623,192.35 = 1,220,411,259.54 : x - Step 2: Convert to fraction form
2,172,862,937.97/2,998,623,192.35 = 1,220,411,259.54/x - Step 3: Cross multiply
2,172,862,937.97x = 2,998,623,192.35 × 1,220,411,259.54 - Step 4: Simplify right side
2,172,862,937.97x = 3,659,553,507,055,616,512 - Step 5: Solve for x
x = 3,659,553,507,055,616,512/2,172,862,937.97 - Step 6: Final answer
x = 1,684,208,167.53
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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.