Finding the Fourth Proportional to 130,719,981.96, 180,379,860.48 and 74,186,724.96
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Solution
The fourth proportional to 130,719,981.96, 180,379,860.48 and 74,186,724.96 is: 102,369,897.07
Step by Step Solution
- Step 1: Write the proportion equation
130,719,981.96 : 180,379,860.48 = 74,186,724.96 : x - Step 2: Convert to fraction form
130,719,981.96/180,379,860.48 = 74,186,724.96/x - Step 3: Cross multiply
130,719,981.96x = 180,379,860.48 × 74,186,724.96 - Step 4: Simplify right side
130,719,981.96x = 13,381,791,097,752,932 - Step 5: Solve for x
x = 13,381,791,097,752,932/130,719,981.96 - Step 6: Final answer
x = 102,369,897.07
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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.