Finding the Fourth Proportional to 7,287,946.80, 10,931,920.20 and 2,495,209.20
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Solution
The fourth proportional to 7,287,946.80, 10,931,920.20 and 2,495,209.20 is: 3,742,813.80
Step by Step Solution
- Step 1: Write the proportion equation
7,287,946.80 : 10,931,920.20 = 2,495,209.20 : x - Step 2: Convert to fraction form
7,287,946.80/10,931,920.20 = 2,495,209.20/x - Step 3: Cross multiply
7,287,946.80x = 10,931,920.20 × 2,495,209.20 - Step 4: Simplify right side
7,287,946.80x = 27,277,427,856,705.84 - Step 5: Solve for x
x = 27,277,427,856,705.84/7,287,946.80 - Step 6: Final answer
x = 3,742,813.80
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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.