Finding the Fourth Proportional to 402,365,408.18, 603,615,318.77 and 125,961,615.47
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Solution
The fourth proportional to 402,365,408.18, 603,615,318.77 and 125,961,615.47 is: 188,963,462.39
Step by Step Solution
- Step 1: Write the proportion equation
402,365,408.18 : 603,615,318.77 = 125,961,615.47 : x - Step 2: Convert to fraction form
402,365,408.18/603,615,318.77 = 125,961,615.47/x - Step 3: Cross multiply
402,365,408.18x = 603,615,318.77 × 125,961,615.47 - Step 4: Simplify right side
402,365,408.18x = 76,032,360,676,532,160 - Step 5: Solve for x
x = 76,032,360,676,532,160/402,365,408.18 - Step 6: Final answer
x = 188,963,462.39
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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.