Finding the Fourth Proportional to 369,989,815.84, 555,018,838.90 and 120,996,364.76
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Solution
The fourth proportional to 369,989,815.84, 555,018,838.90 and 120,996,364.76 is: 181,505,703.68
Step by Step Solution
- Step 1: Write the proportion equation
369,989,815.84 : 555,018,838.90 = 120,996,364.76 : x - Step 2: Convert to fraction form
369,989,815.84/555,018,838.90 = 120,996,364.76/x - Step 3: Cross multiply
369,989,815.84x = 555,018,838.90 × 120,996,364.76 - Step 4: Simplify right side
369,989,815.84x = 67,155,261,880,216,080 - Step 5: Solve for x
x = 67,155,261,880,216,080/369,989,815.84 - Step 6: Final answer
x = 181,505,703.68
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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.