Finding the Fourth Proportional to 1,625,604,415.20, 2,243,395,759.91 and 911,153,173.46
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Solution
The fourth proportional to 1,625,604,415.20, 2,243,395,759.91 and 911,153,173.46 is: 1,257,425,943.75
Step by Step Solution
- Step 1: Write the proportion equation
1,625,604,415.20 : 2,243,395,759.91 = 911,153,173.46 : x - Step 2: Convert to fraction form
1,625,604,415.20/2,243,395,759.91 = 911,153,173.46/x - Step 3: Cross multiply
1,625,604,415.20x = 2,243,395,759.91 × 911,153,173.46 - Step 4: Simplify right side
1,625,604,415.20x = 2,044,077,165,952,932,352 - Step 5: Solve for x
x = 2,044,077,165,952,932,352/1,625,604,415.20 - Step 6: Final answer
x = 1,257,425,943.75
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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.