Finding the Fourth Proportional to 1,579,754,972.44, 2,180,069,144.65 and 874,892,177.02
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Solution
The fourth proportional to 1,579,754,972.44, 2,180,069,144.65 and 874,892,177.02 is: 1,207,355,237.55
Step by Step Solution
- Step 1: Write the proportion equation
1,579,754,972.44 : 2,180,069,144.65 = 874,892,177.02 : x - Step 2: Convert to fraction form
1,579,754,972.44/2,180,069,144.65 = 874,892,177.02/x - Step 3: Cross multiply
1,579,754,972.44x = 2,180,069,144.65 × 874,892,177.02 - Step 4: Simplify right side
1,579,754,972.44x = 1,907,325,440,016,967,936 - Step 5: Solve for x
x = 1,907,325,440,016,967,936/1,579,754,972.44 - Step 6: Final answer
x = 1,207,355,237.55
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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.