Finding the Fourth Proportional to 11,352,211.56, 15,666,417.36 and 6,457,307.76
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Solution
The fourth proportional to 11,352,211.56, 15,666,417.36 and 6,457,307.76 is: 8,911,292.56
Step by Step Solution
- Step 1: Write the proportion equation
11,352,211.56 : 15,666,417.36 = 6,457,307.76 : x - Step 2: Convert to fraction form
11,352,211.56/15,666,417.36 = 6,457,307.76/x - Step 3: Cross multiply
11,352,211.56x = 15,666,417.36 × 6,457,307.76 - Step 4: Simplify right side
11,352,211.56x = 101,162,878,390,126.70 - Step 5: Solve for x
x = 101,162,878,390,126.70/11,352,211.56 - Step 6: Final answer
x = 8,911,292.56
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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.