Finding the Fourth Proportional to 14,386,913.20, 19,853,708.44 and 7,860,402.48
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Solution
The fourth proportional to 14,386,913.20, 19,853,708.44 and 7,860,402.48 is: 10,847,228.79
Step by Step Solution
- Step 1: Write the proportion equation
14,386,913.20 : 19,853,708.44 = 7,860,402.48 : x - Step 2: Convert to fraction form
14,386,913.20/19,853,708.44 = 7,860,402.48/x - Step 3: Cross multiply
14,386,913.20x = 19,853,708.44 × 7,860,402.48 - Step 4: Simplify right side
14,386,913.20x = 156,058,139,058,972.94 - Step 5: Solve for x
x = 156,058,139,058,972.94/14,386,913.20 - Step 6: Final answer
x = 10,847,228.79
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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.