Finding the Fourth Proportional to 1,943,877,432.51, 2,681,562,586.97 and 1,180,718,420.27
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Solution
The fourth proportional to 1,943,877,432.51, 2,681,562,586.97 and 1,180,718,420.27 is: 1,628,791,141.14
Step by Step Solution
- Step 1: Write the proportion equation
1,943,877,432.51 : 2,681,562,586.97 = 1,180,718,420.27 : x - Step 2: Convert to fraction form
1,943,877,432.51/2,681,562,586.97 = 1,180,718,420.27/x - Step 3: Cross multiply
1,943,877,432.51x = 2,681,562,586.97 × 1,180,718,420.27 - Step 4: Simplify right side
1,943,877,432.51x = 3,166,170,341,531,779,072 - Step 5: Solve for x
x = 3,166,170,341,531,779,072/1,943,877,432.51 - Step 6: Final answer
x = 1,628,791,141.14
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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.