Finding the Fourth Proportional to 680,277,696.99, 938,812,951.04 and 382,939,125.63
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Solution
The fourth proportional to 680,277,696.99, 938,812,951.04 and 382,939,125.63 is: 528,472,728.41
Step by Step Solution
- Step 1: Write the proportion equation
680,277,696.99 : 938,812,951.04 = 382,939,125.63 : x - Step 2: Convert to fraction form
680,277,696.99/938,812,951.04 = 382,939,125.63/x - Step 3: Cross multiply
680,277,696.99x = 938,812,951.04 × 382,939,125.63 - Step 4: Simplify right side
680,277,696.99x = 359,508,210,601,377,600 - Step 5: Solve for x
x = 359,508,210,601,377,600/680,277,696.99 - Step 6: Final answer
x = 528,472,728.41
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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.