Finding the Fourth Proportional to 1,557,935,968.20, 2,337,340,841.34 and 625,913,293.62
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Solution
The fourth proportional to 1,557,935,968.20, 2,337,340,841.34 and 625,913,293.62 is: 939,045,464.11
Step by Step Solution
- Step 1: Write the proportion equation
1,557,935,968.20 : 2,337,340,841.34 = 625,913,293.62 : x - Step 2: Convert to fraction form
1,557,935,968.20/2,337,340,841.34 = 625,913,293.62/x - Step 3: Cross multiply
1,557,935,968.20x = 2,337,340,841.34 × 625,913,293.62 - Step 4: Simplify right side
1,557,935,968.20x = 1,462,972,704,315,661,312 - Step 5: Solve for x
x = 1,462,972,704,315,661,312/1,557,935,968.20 - Step 6: Final answer
x = 939,045,464.11
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.