Finding the Fourth Proportional to 157,719,888.20, 236,402,885.10 and 66,828,009.80
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Solution
The fourth proportional to 157,719,888.20, 236,402,885.10 and 66,828,009.80 is: 100,167,039.82
Step by Step Solution
- Step 1: Write the proportion equation
157,719,888.20 : 236,402,885.10 = 66,828,009.80 : x - Step 2: Convert to fraction form
157,719,888.20/236,402,885.10 = 66,828,009.80/x - Step 3: Cross multiply
157,719,888.20x = 236,402,885.10 × 66,828,009.80 - Step 4: Simplify right side
157,719,888.20x = 15,798,334,322,211,072 - Step 5: Solve for x
x = 15,798,334,322,211,072/157,719,888.20 - Step 6: Final answer
x = 100,167,039.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.