Finding the Fourth Proportional to 385,642,119.42, 532,348,989.35 and 260,364,030.75
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Solution
The fourth proportional to 385,642,119.42, 532,348,989.35 and 260,364,030.75 is: 359,412,319.48
Step by Step Solution
- Step 1: Write the proportion equation
385,642,119.42 : 532,348,989.35 = 260,364,030.75 : x - Step 2: Convert to fraction form
385,642,119.42/532,348,989.35 = 260,364,030.75/x - Step 3: Cross multiply
385,642,119.42x = 532,348,989.35 × 260,364,030.75 - Step 4: Simplify right side
385,642,119.42x = 138,604,528,631,553,008 - Step 5: Solve for x
x = 138,604,528,631,553,008/385,642,119.42 - Step 6: Final answer
x = 359,412,319.48
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.