Finding the Fourth Proportional to 1,329,214,052.80, 1,993,821,079.20 and 455,698,259.20
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Solution
The fourth proportional to 1,329,214,052.80, 1,993,821,079.20 and 455,698,259.20 is: 683,547,388.80
Step by Step Solution
- Step 1: Write the proportion equation
1,329,214,052.80 : 1,993,821,079.20 = 455,698,259.20 : x - Step 2: Convert to fraction form
1,329,214,052.80/1,993,821,079.20 = 455,698,259.20/x - Step 3: Cross multiply
1,329,214,052.80x = 1,993,821,079.20 × 455,698,259.20 - Step 4: Simplify right side
1,329,214,052.80x = 908,580,794,947,705,344 - Step 5: Solve for x
x = 908,580,794,947,705,344/1,329,214,052.80 - Step 6: Final answer
x = 683,547,388.80
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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.