Finding the Fourth Proportional to 11,506,267.78, 15,878,645.35 and 6,279,275.96
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Solution
The fourth proportional to 11,506,267.78, 15,878,645.35 and 6,279,275.96 is: 8,665,398.53
Step by Step Solution
- Step 1: Write the proportion equation
11,506,267.78 : 15,878,645.35 = 6,279,275.96 : x - Step 2: Convert to fraction form
11,506,267.78/15,878,645.35 = 6,279,275.96/x - Step 3: Cross multiply
11,506,267.78x = 15,878,645.35 × 6,279,275.96 - Step 4: Simplify right side
11,506,267.78x = 99,706,395,988,074.30 - Step 5: Solve for x
x = 99,706,395,988,074.30/11,506,267.78 - Step 6: Final answer
x = 8,665,398.53
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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.