Finding the Fourth Proportional to 1,999,539,685.56, 2,999,506,649.94 and 689,269,239.48
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Solution
The fourth proportional to 1,999,539,685.56, 2,999,506,649.94 and 689,269,239.48 is: 1,033,971,809.79
Step by Step Solution
- Step 1: Write the proportion equation
1,999,539,685.56 : 2,999,506,649.94 = 689,269,239.48 : x - Step 2: Convert to fraction form
1,999,539,685.56/2,999,506,649.94 = 689,269,239.48/x - Step 3: Cross multiply
1,999,539,685.56x = 2,999,506,649.94 × 689,269,239.48 - Step 4: Simplify right side
1,999,539,685.56x = 2,067,467,667,419,346,432 - Step 5: Solve for x
x = 2,067,467,667,419,346,432/1,999,539,685.56 - Step 6: Final answer
x = 1,033,971,809.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.