Finding the Fourth Proportional to 612,106,318.80, 858,762,831.60 and 612,106,318.80
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Solution
The fourth proportional to 612,106,318.80, 858,762,831.60 and 612,106,318.80 is: 858,762,831.60
Step by Step Solution
- Step 1: Write the proportion equation
612,106,318.80 : 858,762,831.60 = 612,106,318.80 : x - Step 2: Convert to fraction form
612,106,318.80/858,762,831.60 = 612,106,318.80/x - Step 3: Cross multiply
612,106,318.80x = 858,762,831.60 × 612,106,318.80 - Step 4: Simplify right side
612,106,318.80x = 525,654,155,572,940,288 - Step 5: Solve for x
x = 525,654,155,572,940,288/612,106,318.80 - Step 6: Final answer
x = 858,762,831.60
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.