Finding the Fourth Proportional to 129,668,358.68, 194,516,159.88 and 42,236,689.12
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Solution
The fourth proportional to 129,668,358.68, 194,516,159.88 and 42,236,689.12 is: 63,359,470.71
Step by Step Solution
- Step 1: Write the proportion equation
129,668,358.68 : 194,516,159.88 = 42,236,689.12 : x - Step 2: Convert to fraction form
129,668,358.68/194,516,159.88 = 42,236,689.12/x - Step 3: Cross multiply
129,668,358.68x = 194,516,159.88 × 42,236,689.12 - Step 4: Simplify right side
129,668,358.68x = 8,215,718,573,667,776 - Step 5: Solve for x
x = 8,215,718,573,667,776/129,668,358.68 - Step 6: Final answer
x = 63,359,470.71
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.