Finding the Fourth Proportional to 351,803,877.11, 485,287,644.68 and 219,415,030.70
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Solution
The fourth proportional to 351,803,877.11, 485,287,644.68 and 219,415,030.70 is: 302,666,941.40
Step by Step Solution
- Step 1: Write the proportion equation
351,803,877.11 : 485,287,644.68 = 219,415,030.70 : x - Step 2: Convert to fraction form
351,803,877.11/485,287,644.68 = 219,415,030.70/x - Step 3: Cross multiply
351,803,877.11x = 485,287,644.68 × 219,415,030.70 - Step 4: Simplify right side
351,803,877.11x = 106,479,403,455,792,880 - Step 5: Solve for x
x = 106,479,403,455,792,880/351,803,877.11 - Step 6: Final answer
x = 302,666,941.40
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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.