Finding the Fourth Proportional to 7,934,862.89, 10,803,618.74 and 7,909,668.65
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Solution
The fourth proportional to 7,934,862.89, 10,803,618.74 and 7,909,668.65 is: 10,769,315.82
Step by Step Solution
- Step 1: Write the proportion equation
7,934,862.89 : 10,803,618.74 = 7,909,668.65 : x - Step 2: Convert to fraction form
7,934,862.89/10,803,618.74 = 7,909,668.65/x - Step 3: Cross multiply
7,934,862.89x = 10,803,618.74 × 7,909,668.65 - Step 4: Simplify right side
7,934,862.89x = 85,453,044,454,330.50 - Step 5: Solve for x
x = 85,453,044,454,330.50/7,934,862.89 - 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.