Finding the Fourth Proportional to 15,202,395.60, 22,771,798.20 and 7,122,267.60
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Solution
The fourth proportional to 15,202,395.60, 22,771,798.20 and 7,122,267.60 is: 10,668,505.46
Step by Step Solution
- Step 1: Write the proportion equation
15,202,395.60 : 22,771,798.20 = 7,122,267.60 : x - Step 2: Convert to fraction form
15,202,395.60/22,771,798.20 = 7,122,267.60/x - Step 3: Cross multiply
15,202,395.60x = 22,771,798.20 × 7,122,267.60 - Step 4: Simplify right side
15,202,395.60x = 162,186,840,513,598.31 - Step 5: Solve for x
x = 162,186,840,513,598.31/15,202,395.60 - Step 6: Final answer
x = 10,668,505.46
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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.