Finding the Fourth Proportional to 527,705,811.16, 727,931,460.81 and 329,122,541.55
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Solution
The fourth proportional to 527,705,811.16, 727,931,460.81 and 329,122,541.55 is: 454,000,405.89
Step by Step Solution
- Step 1: Write the proportion equation
527,705,811.16 : 727,931,460.81 = 329,122,541.55 : x - Step 2: Convert to fraction form
527,705,811.16/727,931,460.81 = 329,122,541.55/x - Step 3: Cross multiply
527,705,811.16x = 727,931,460.81 × 329,122,541.55 - Step 4: Simplify right side
527,705,811.16x = 239,578,652,458,108,992 - Step 5: Solve for x
x = 239,578,652,458,108,992/527,705,811.16 - Step 6: Final answer
x = 454,000,405.89
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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.