Finding the Fourth Proportional to 979,497,151.32, 1,351,801,545.66 and 731,548,038.36
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Solution
The fourth proportional to 979,497,151.32, 1,351,801,545.66 and 731,548,038.36 is: 1,009,607,600.85
Step by Step Solution
- Step 1: Write the proportion equation
979,497,151.32 : 1,351,801,545.66 = 731,548,038.36 : x - Step 2: Convert to fraction form
979,497,151.32/1,351,801,545.66 = 731,548,038.36/x - Step 3: Cross multiply
979,497,151.32x = 1,351,801,545.66 × 731,548,038.36 - Step 4: Simplify right side
979,497,151.32x = 988,907,768,979,588,992 - Step 5: Solve for x
x = 988,907,768,979,588,992/979,497,151.32 - Step 6: Final answer
x = 1,009,607,600.85
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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.