Finding the Fourth Proportional to 665,919,981,639.23, 918,812,069,182.40 and 376,888,240,921.95
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Solution
The fourth proportional to 665,919,981,639.23, 918,812,069,182.40 and 376,888,240,921.95 is: 520,016,629,685.12
Step by Step Solution
- Step 1: Write the proportion equation
665,919,981,639.23 : 918,812,069,182.40 = 376,888,240,921.95 : x - Step 2: Convert to fraction form
665,919,981,639.23/918,812,069,182.40 = 376,888,240,921.95/x - Step 3: Cross multiply
665,919,981,639.23x = 918,812,069,182.40 × 376,888,240,921.95 - Step 4: Simplify right side
665,919,981,639.23x = 346,289,464,492,011,791,843,328 - Step 5: Solve for x
x = 346,289,464,492,011,791,843,328/665,919,981,639.23 - Step 6: Final answer
x = 520,016,629,685.12
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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.