Finding the Fourth Proportional to 1,351,844,206.67, 1,864,950,744.71 and 815,696,819.21
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Solution
The fourth proportional to 1,351,844,206.67, 1,864,950,744.71 and 815,696,819.21 is: 1,125,303,036.35
Step by Step Solution
- Step 1: Write the proportion equation
1,351,844,206.67 : 1,864,950,744.71 = 815,696,819.21 : x - Step 2: Convert to fraction form
1,351,844,206.67/1,864,950,744.71 = 815,696,819.21/x - Step 3: Cross multiply
1,351,844,206.67x = 1,864,950,744.71 × 815,696,819.21 - Step 4: Simplify right side
1,351,844,206.67x = 1,521,234,390,429,864,448 - Step 5: Solve for x
x = 1,521,234,390,429,864,448/1,351,844,206.67 - Step 6: Final answer
x = 1,125,303,036.35
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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.