Finding the Fourth Proportional to 658,264,416.84, 908,220,921.30 and 518,601,624.84
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Solution
The fourth proportional to 658,264,416.84, 908,220,921.30 and 518,601,624.84 is: 715,525,301.76
Step by Step Solution
- Step 1: Write the proportion equation
658,264,416.84 : 908,220,921.30 = 518,601,624.84 : x - Step 2: Convert to fraction form
658,264,416.84/908,220,921.30 = 518,601,624.84/x - Step 3: Cross multiply
658,264,416.84x = 908,220,921.30 × 518,601,624.84 - Step 4: Simplify right side
658,264,416.84x = 471,004,845,499,861,696 - Step 5: Solve for x
x = 471,004,845,499,861,696/658,264,416.84 - Step 6: Final answer
x = 715,525,301.76
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.