Finding the Fourth Proportional to 1,372,094,075.53, 1,893,485,701.79 and 745,564,415.05
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Solution
The fourth proportional to 1,372,094,075.53, 1,893,485,701.79 and 745,564,415.05 is: 1,028,876,652.73
Step by Step Solution
- Step 1: Write the proportion equation
1,372,094,075.53 : 1,893,485,701.79 = 745,564,415.05 : x - Step 2: Convert to fraction form
1,372,094,075.53/1,893,485,701.79 = 745,564,415.05/x - Step 3: Cross multiply
1,372,094,075.53x = 1,893,485,701.79 × 745,564,415.05 - Step 4: Simplify right side
1,372,094,075.53x = 1,411,715,559,660,600,064 - Step 5: Solve for x
x = 1,411,715,559,660,600,064/1,372,094,075.53 - Step 6: Final answer
x = 1,028,876,652.73
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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.