Finding the Fourth Proportional to 526,720,062.15, 726,873,432.95 and 315,026,889.09
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Solution
The fourth proportional to 526,720,062.15, 726,873,432.95 and 315,026,889.09 is: 434,736,955.73
Step by Step Solution
- Step 1: Write the proportion equation
526,720,062.15 : 726,873,432.95 = 315,026,889.09 : x - Step 2: Convert to fraction form
526,720,062.15/726,873,432.95 = 315,026,889.09/x - Step 3: Cross multiply
526,720,062.15x = 726,873,432.95 × 315,026,889.09 - Step 4: Simplify right side
526,720,062.15x = 228,984,676,342,476,288 - Step 5: Solve for x
x = 228,984,676,342,476,288/526,720,062.15 - Step 6: Final answer
x = 434,736,955.73
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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.