Finding the Fourth Proportional to 297,792,139.80, 446,688,209.70 and 221,264,635.80
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Solution
The fourth proportional to 297,792,139.80, 446,688,209.70 and 221,264,635.80 is: 331,896,953.70
Step by Step Solution
- Step 1: Write the proportion equation
297,792,139.80 : 446,688,209.70 = 221,264,635.80 : x - Step 2: Convert to fraction form
297,792,139.80/446,688,209.70 = 221,264,635.80/x - Step 3: Cross multiply
297,792,139.80x = 446,688,209.70 × 221,264,635.80 - Step 4: Simplify right side
297,792,139.80x = 98,836,304,035,424,528 - Step 5: Solve for x
x = 98,836,304,035,424,528/297,792,139.80 - Step 6: Final answer
x = 331,896,953.70
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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.