Finding the Fourth Proportional to 894,194,151.92, 1,233,987,988.99 and 497,708,632.70
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Solution
The fourth proportional to 894,194,151.92, 1,233,987,988.99 and 497,708,632.70 is: 686,837,946.15
Step by Step Solution
- Step 1: Write the proportion equation
894,194,151.92 : 1,233,987,988.99 = 497,708,632.70 : x - Step 2: Convert to fraction form
894,194,151.92/1,233,987,988.99 = 497,708,632.70/x - Step 3: Cross multiply
894,194,151.92x = 1,233,987,988.99 × 497,708,632.70 - Step 4: Simplify right side
894,194,151.92x = 614,166,474,768,435,584 - Step 5: Solve for x
x = 614,166,474,768,435,584/894,194,151.92 - Step 6: Final answer
x = 686,837,946.15
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1.5x scale
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.