Finding the Fourth Proportional to 1,149,940,345.42, 1,588,226,689.39 and 772,942,415.99
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Solution
The fourth proportional to 1,149,940,345.42, 1,588,226,689.39 and 772,942,415.99 is: 1,067,540,398.36
Step by Step Solution
- Step 1: Write the proportion equation
1,149,940,345.42 : 1,588,226,689.39 = 772,942,415.99 : x - Step 2: Convert to fraction form
1,149,940,345.42/1,588,226,689.39 = 772,942,415.99/x - Step 3: Cross multiply
1,149,940,345.42x = 1,588,226,689.39 × 772,942,415.99 - Step 4: Simplify right side
1,149,940,345.42x = 1,227,607,774,436,905,984 - Step 5: Solve for x
x = 1,227,607,774,436,905,984/1,149,940,345.42 - Step 6: Final answer
x = 1,067,540,398.36
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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.