Finding the Fourth Proportional to 330,486,702,922.80, 495,730,054,384.20 and 198,247,176,010.80
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Solution
The fourth proportional to 330,486,702,922.80, 495,730,054,384.20 and 198,247,176,010.80 is: 297,370,764,016.20
Step by Step Solution
- Step 1: Write the proportion equation
330,486,702,922.80 : 495,730,054,384.20 = 198,247,176,010.80 : x - Step 2: Convert to fraction form
330,486,702,922.80/495,730,054,384.20 = 198,247,176,010.80/x - Step 3: Cross multiply
330,486,702,922.80x = 495,730,054,384.20 × 198,247,176,010.80 - Step 4: Simplify right side
330,486,702,922.80x = 98,277,083,345,347,955,130,368 - Step 5: Solve for x
x = 98,277,083,345,347,955,130,368/330,486,702,922.80 - Step 6: Final answer
x = 297,370,764,016.20
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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.