Finding the Fourth Proportional to 72,430,482,944.88, 99,954,071,073.36 and 40,315,153,744.80
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Solution
The fourth proportional to 72,430,482,944.88, 99,954,071,073.36 and 40,315,153,744.80 is: 55,634,914,733.45
Step by Step Solution
- Step 1: Write the proportion equation
72,430,482,944.88 : 99,954,071,073.36 = 40,315,153,744.80 : x - Step 2: Convert to fraction form
72,430,482,944.88/99,954,071,073.36 = 40,315,153,744.80/x - Step 3: Cross multiply
72,430,482,944.88x = 99,954,071,073.36 × 40,315,153,744.80 - Step 4: Simplify right side
72,430,482,944.88x = 4,029,663,742,741,175,074,816 - Step 5: Solve for x
x = 4,029,663,742,741,175,074,816/72,430,482,944.88 - Step 6: Final answer
x = 55,634,914,733.45
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1.5x scale
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.