Finding the Fourth Proportional to 537,778,813.70, 806,668,220.55 and 265,681,021.70
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Solution
The fourth proportional to 537,778,813.70, 806,668,220.55 and 265,681,021.70 is: 398,521,532.55
Step by Step Solution
- Step 1: Write the proportion equation
537,778,813.70 : 806,668,220.55 = 265,681,021.70 : x - Step 2: Convert to fraction form
537,778,813.70/806,668,220.55 = 265,681,021.70/x - Step 3: Cross multiply
537,778,813.70x = 806,668,220.55 × 265,681,021.70 - Step 4: Simplify right side
537,778,813.70x = 214,316,437,008,644,928 - Step 5: Solve for x
x = 214,316,437,008,644,928/537,778,813.70 - Step 6: Final answer
x = 398,521,532.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.