Finding the Fourth Proportional to 680,277,695.99, 938,812,949.66 and 382,939,124.63
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Solution
The fourth proportional to 680,277,695.99, 938,812,949.66 and 382,939,124.63 is: 528,472,727.02
Step by Step Solution
- Step 1: Write the proportion equation
680,277,695.99 : 938,812,949.66 = 382,939,124.63 : x - Step 2: Convert to fraction form
680,277,695.99/938,812,949.66 = 382,939,124.63/x - Step 3: Cross multiply
680,277,695.99x = 938,812,949.66 × 382,939,124.63 - Step 4: Simplify right side
680,277,695.99x = 359,508,209,130,371,968 - Step 5: Solve for x
x = 359,508,209,130,371,968/680,277,695.99 - Step 6: Final answer
x = 528,472,727.02
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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.