Finding the Fourth Proportional to 648,619,134.67, 974,480,838.00 and 415,905,784.66
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Solution
The fourth proportional to 648,619,134.67, 974,480,838.00 and 415,905,784.66 is: 624,853,933.38
Step by Step Solution
- Step 1: Write the proportion equation
648,619,134.67 : 974,480,838.00 = 415,905,784.66 : x - Step 2: Convert to fraction form
648,619,134.67/974,480,838.00 = 415,905,784.66/x - Step 3: Cross multiply
648,619,134.67x = 974,480,838.00 × 415,905,784.66 - Step 4: Simplify right side
648,619,134.67x = 405,292,217,562,444,864 - Step 5: Solve for x
x = 405,292,217,562,444,864/648,619,134.67 - Step 6: Final answer
x = 624,853,933.38
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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.