Finding the Fourth Proportional to 10,368,848.05, 15,553,272.08 and 9,780,982.45
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Solution
The fourth proportional to 10,368,848.05, 15,553,272.08 and 9,780,982.45 is: 14,671,473.68
Step by Step Solution
- Step 1: Write the proportion equation
10,368,848.05 : 15,553,272.08 = 9,780,982.45 : x - Step 2: Convert to fraction form
10,368,848.05/15,553,272.08 = 9,780,982.45/x - Step 3: Cross multiply
10,368,848.05x = 15,553,272.08 × 9,780,982.45 - Step 4: Simplify right side
10,368,848.05x = 152,126,281,254,555 - Step 5: Solve for x
x = 152,126,281,254,555/10,368,848.05 - Step 6: Final answer
x = 14,671,473.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.