Finding the Fourth Proportional to 76,964,332.14, 106,031,438.91 and 53,718,446.70
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Solution
The fourth proportional to 76,964,332.14, 106,031,438.91 and 53,718,446.70 is: 74,006,283.71
Step by Step Solution
- Step 1: Write the proportion equation
76,964,332.14 : 106,031,438.91 = 53,718,446.70 : x - Step 2: Convert to fraction form
76,964,332.14/106,031,438.91 = 53,718,446.70/x - Step 3: Cross multiply
76,964,332.14x = 106,031,438.91 × 53,718,446.70 - Step 4: Simplify right side
76,964,332.14x = 5,695,844,199,611,141 - Step 5: Solve for x
x = 5,695,844,199,611,141/76,964,332.14 - Step 6: Final answer
x = 74,006,283.71
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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.