Finding the Fourth Proportional to 7,934,862.90, 10,803,618.74 and 7,909,668.66
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Solution
The fourth proportional to 7,934,862.90, 10,803,618.74 and 7,909,668.66 is: 10,769,315.82
Step by Step Solution
- Step 1: Write the proportion equation
7,934,862.90 : 10,803,618.74 = 7,909,668.66 : x - Step 2: Convert to fraction form
7,934,862.90/10,803,618.74 = 7,909,668.66/x - Step 3: Cross multiply
7,934,862.90x = 10,803,618.74 × 7,909,668.66 - Step 4: Simplify right side
7,934,862.90x = 85,453,044,562,366.69 - Step 5: Solve for x
x = 85,453,044,562,366.69/7,934,862.90 - Step 6: Final answer
x = 10,769,315.82
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Why These Related Problems?
These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.