Finding the Fourth Proportional to 7,219,898,191.08, 9,963,267,256.76 and 4,167,971,470.92
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Solution
The fourth proportional to 7,219,898,191.08, 9,963,267,256.76 and 4,167,971,470.92 is: 5,751,689,647.73
Step by Step Solution
- Step 1: Write the proportion equation
7,219,898,191.08 : 9,963,267,256.76 = 4,167,971,470.92 : x - Step 2: Convert to fraction form
7,219,898,191.08/9,963,267,256.76 = 4,167,971,470.92/x - Step 3: Cross multiply
7,219,898,191.08x = 9,963,267,256.76 × 4,167,971,470.92 - Step 4: Simplify right side
7,219,898,191.08x = 41,526,613,683,306,209,280 - Step 5: Solve for x
x = 41,526,613,683,306,209,280/7,219,898,191.08 - Step 6: Final answer
x = 5,751,689,647.73
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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.