Finding the Fourth Proportional to 658,940,027.74, 909,334,742.94 and 361,587,245.02
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Solution
The fourth proportional to 658,940,027.74, 909,334,742.94 and 361,587,245.02 is: 498,989,028.83
Step by Step Solution
- Step 1: Write the proportion equation
658,940,027.74 : 909,334,742.94 = 361,587,245.02 : x - Step 2: Convert to fraction form
658,940,027.74/909,334,742.94 = 361,587,245.02/x - Step 3: Cross multiply
658,940,027.74x = 909,334,742.94 × 361,587,245.02 - Step 4: Simplify right side
658,940,027.74x = 328,803,844,500,644,480 - Step 5: Solve for x
x = 328,803,844,500,644,480/658,940,027.74 - Step 6: Final answer
x = 498,989,028.83
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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.