Finding the Fourth Proportional to 800,712,902.80, 1,201,069,354.20 and 255,509,549.20
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Solution
The fourth proportional to 800,712,902.80, 1,201,069,354.20 and 255,509,549.20 is: 383,264,323.80
Step by Step Solution
- Step 1: Write the proportion equation
800,712,902.80 : 1,201,069,354.20 = 255,509,549.20 : x - Step 2: Convert to fraction form
800,712,902.80/1,201,069,354.20 = 255,509,549.20/x - Step 3: Cross multiply
800,712,902.80x = 1,201,069,354.20 × 255,509,549.20 - Step 4: Simplify right side
800,712,902.80x = 306,884,689,249,577,152 - Step 5: Solve for x
x = 306,884,689,249,577,152/800,712,902.80 - Step 6: Final answer
x = 383,264,323.80
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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.