Finding the Fourth Proportional to 1,023,368,239.97, 1,412,248,173.37 and 553,469,560.85
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Solution
The fourth proportional to 1,023,368,239.97, 1,412,248,173.37 and 553,469,560.85 is: 763,787,995.17
Step by Step Solution
- Step 1: Write the proportion equation
1,023,368,239.97 : 1,412,248,173.37 = 553,469,560.85 : x - Step 2: Convert to fraction form
1,023,368,239.97/1,412,248,173.37 = 553,469,560.85/x - Step 3: Cross multiply
1,023,368,239.97x = 1,412,248,173.37 × 553,469,560.85 - Step 4: Simplify right side
1,023,368,239.97x = 781,636,376,328,455,552 - Step 5: Solve for x
x = 781,636,376,328,455,552/1,023,368,239.97 - Step 6: Final answer
x = 763,787,995.17
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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.