Finding the Fourth Proportional to 414,362,247.40, 571,819,811.94 and 228,723,215.08
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Solution
The fourth proportional to 414,362,247.40, 571,819,811.94 and 228,723,215.08 is: 315,637,987.42
Step by Step Solution
- Step 1: Write the proportion equation
414,362,247.40 : 571,819,811.94 = 228,723,215.08 : x - Step 2: Convert to fraction form
414,362,247.40/571,819,811.94 = 228,723,215.08/x - Step 3: Cross multiply
414,362,247.40x = 571,819,811.94 × 228,723,215.08 - Step 4: Simplify right side
414,362,247.40x = 130,788,465,833,357,792 - Step 5: Solve for x
x = 130,788,465,833,357,792/414,362,247.40 - Step 6: Final answer
x = 315,637,987.42
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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.