Finding the Fourth Proportional to 1,329,698,750.10, 1,994,548,125.15 and 1,258,273,079.70
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Solution
The fourth proportional to 1,329,698,750.10, 1,994,548,125.15 and 1,258,273,079.70 is: 1,887,409,619.55
Step by Step Solution
- Step 1: Write the proportion equation
1,329,698,750.10 : 1,994,548,125.15 = 1,258,273,079.70 : x - Step 2: Convert to fraction form
1,329,698,750.10/1,994,548,125.15 = 1,258,273,079.70/x - Step 3: Cross multiply
1,329,698,750.10x = 1,994,548,125.15 × 1,258,273,079.70 - Step 4: Simplify right side
1,329,698,750.10x = 2,509,686,212,042,351,616 - Step 5: Solve for x
x = 2,509,686,212,042,351,616/1,329,698,750.10 - Step 6: Final answer
x = 1,887,409,619.55
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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.