Finding the Fourth Proportional to 1,010,458,399.68, 1,395,797,408.76 and 761,445,073.92
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Solution
The fourth proportional to 1,010,458,399.68, 1,395,797,408.76 and 761,445,073.92 is: 1,051,822,679.12
Step by Step Solution
- Step 1: Write the proportion equation
1,010,458,399.68 : 1,395,797,408.76 = 761,445,073.92 : x - Step 2: Convert to fraction form
1,010,458,399.68/1,395,797,408.76 = 761,445,073.92/x - Step 3: Cross multiply
1,010,458,399.68x = 1,395,797,408.76 × 761,445,073.92 - Step 4: Simplify right side
1,010,458,399.68x = 1,062,823,061,090,602,624 - Step 5: Solve for x
x = 1,062,823,061,090,602,624/1,010,458,399.68 - Step 6: Final answer
x = 1,051,822,679.12
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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.