Finding the Fourth Proportional to 521,640,600.80, 782,460,901.20 and 368,585,592.80
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Solution
The fourth proportional to 521,640,600.80, 782,460,901.20 and 368,585,592.80 is: 552,878,389.20
Step by Step Solution
- Step 1: Write the proportion equation
521,640,600.80 : 782,460,901.20 = 368,585,592.80 : x - Step 2: Convert to fraction form
521,640,600.80/782,460,901.20 = 368,585,592.80/x - Step 3: Cross multiply
521,640,600.80x = 782,460,901.20 × 368,585,592.80 - Step 4: Simplify right side
521,640,600.80x = 288,403,815,111,624,256 - Step 5: Solve for x
x = 288,403,815,111,624,256/521,640,600.80 - Step 6: Final answer
x = 552,878,389.20
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1.5x scale
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.