Finding the Fourth Proportional to 7,242,497.70, 10,863,746.55 and 7,130,523.30
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Solution
The fourth proportional to 7,242,497.70, 10,863,746.55 and 7,130,523.30 is: 10,695,784.95
Step by Step Solution
- Step 1: Write the proportion equation
7,242,497.70 : 10,863,746.55 = 7,130,523.30 : x - Step 2: Convert to fraction form
7,242,497.70/10,863,746.55 = 7,130,523.30/x - Step 3: Cross multiply
7,242,497.70x = 10,863,746.55 × 7,130,523.30 - Step 4: Simplify right side
7,242,497.70x = 77,464,197,900,069.62 - Step 5: Solve for x
x = 77,464,197,900,069.62/7,242,497.70 - Step 6: Final answer
x = 10,695,784.95
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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.