Finding the Fourth Proportional to 282,791,318.60, 390,245,904.57 and 163,718,931.68
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Solution
The fourth proportional to 282,791,318.60, 390,245,904.57 and 163,718,931.68 is: 225,928,585.45
Step by Step Solution
- Step 1: Write the proportion equation
282,791,318.60 : 390,245,904.57 = 163,718,931.68 : x - Step 2: Convert to fraction form
282,791,318.60/390,245,904.57 = 163,718,931.68/x - Step 3: Cross multiply
282,791,318.60x = 390,245,904.57 × 163,718,931.68 - Step 4: Simplify right side
282,791,318.60x = 63,890,642,588,207,824 - Step 5: Solve for x
x = 63,890,642,588,207,824/282,791,318.60 - Step 6: Final answer
x = 225,928,585.45
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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.