Finding the Fourth Proportional to 1,329,696,575.40, 1,994,544,863.10 and 805,908,325.80
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Solution
The fourth proportional to 1,329,696,575.40, 1,994,544,863.10 and 805,908,325.80 is: 1,208,862,488.70
Step by Step Solution
- Step 1: Write the proportion equation
1,329,696,575.40 : 1,994,544,863.10 = 805,908,325.80 : x - Step 2: Convert to fraction form
1,329,696,575.40/1,994,544,863.10 = 805,908,325.80/x - Step 3: Cross multiply
1,329,696,575.40x = 1,994,544,863.10 × 805,908,325.80 - Step 4: Simplify right side
1,329,696,575.40x = 1,607,420,311,353,911,040 - Step 5: Solve for x
x = 1,607,420,311,353,911,040/1,329,696,575.40 - Step 6: Final answer
x = 1,208,862,488.70
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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.