Finding the Fourth Proportional to 1,988,546,943.60, 2,983,044,364.20 and 608,350,489.20
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Solution
The fourth proportional to 1,988,546,943.60, 2,983,044,364.20 and 608,350,489.20 is: 912,594,245.82
Step by Step Solution
- Step 1: Write the proportion equation
1,988,546,943.60 : 2,983,044,364.20 = 608,350,489.20 : x - Step 2: Convert to fraction form
1,988,546,943.60/2,983,044,364.20 = 608,350,489.20/x - Step 3: Cross multiply
1,988,546,943.60x = 2,983,044,364.20 × 608,350,489.20 - Step 4: Simplify right side
1,988,546,943.60x = 1,814,736,498,266,373,120 - Step 5: Solve for x
x = 1,814,736,498,266,373,120/1,988,546,943.60 - Step 6: Final answer
x = 912,594,245.82
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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.