Finding the Fourth Proportional to 2,068,781,569.80, 3,103,164,189.90 and 614,758,993.80
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Solution
The fourth proportional to 2,068,781,569.80, 3,103,164,189.90 and 614,758,993.80 is: 922,136,064.45
Step by Step Solution
- Step 1: Write the proportion equation
2,068,781,569.80 : 3,103,164,189.90 = 614,758,993.80 : x - Step 2: Convert to fraction form
2,068,781,569.80/3,103,164,189.90 = 614,758,993.80/x - Step 3: Cross multiply
2,068,781,569.80x = 3,103,164,189.90 × 614,758,993.80 - Step 4: Simplify right side
2,068,781,569.80x = 1,907,698,094,979,116,032 - Step 5: Solve for x
x = 1,907,698,094,979,116,032/2,068,781,569.80 - Step 6: Final answer
x = 922,136,064.45
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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.