Finding the Fourth Proportional to 420,950,180,833.20, 631,462,391,054.86 and 118,765,427,920.95
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Solution
The fourth proportional to 420,950,180,833.20, 631,462,391,054.86 and 118,765,427,920.95 is: 178,158,614,734.82
Step by Step Solution
- Step 1: Write the proportion equation
420,950,180,833.20 : 631,462,391,054.86 = 118,765,427,920.95 : x - Step 2: Convert to fraction form
420,950,180,833.20/631,462,391,054.86 = 118,765,427,920.95/x - Step 3: Cross multiply
420,950,180,833.20x = 631,462,391,054.86 × 118,765,427,920.95 - Step 4: Simplify right side
420,950,180,833.20x = 74,995,901,089,616,714,792,960 - Step 5: Solve for x
x = 74,995,901,089,616,714,792,960/420,950,180,833.20 - Step 6: Final answer
x = 178,158,614,734.82
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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.