Finding the Fourth Proportional to 442,671,220.80, 664,006,831.20 and 436,624,603.20
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Solution
The fourth proportional to 442,671,220.80, 664,006,831.20 and 436,624,603.20 is: 654,936,904.80
Step by Step Solution
- Step 1: Write the proportion equation
442,671,220.80 : 664,006,831.20 = 436,624,603.20 : x - Step 2: Convert to fraction form
442,671,220.80/664,006,831.20 = 436,624,603.20/x - Step 3: Cross multiply
442,671,220.80x = 664,006,831.20 × 436,624,603.20 - Step 4: Simplify right side
442,671,220.80x = 289,921,719,194,789,376 - Step 5: Solve for x
x = 289,921,719,194,789,376/442,671,220.80 - Step 6: Final answer
x = 654,936,904.80
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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.