Finding the Fourth Proportional to 933,121,970.48, 1,287,747,440.12 and 536,645,269.60
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Solution
The fourth proportional to 933,121,970.48, 1,287,747,440.12 and 536,645,269.60 is: 740,592,970.74
Step by Step Solution
- Step 1: Write the proportion equation
933,121,970.48 : 1,287,747,440.12 = 536,645,269.60 : x - Step 2: Convert to fraction form
933,121,970.48/1,287,747,440.12 = 536,645,269.60/x - Step 3: Cross multiply
933,121,970.48x = 1,287,747,440.12 × 536,645,269.60 - Step 4: Simplify right side
933,121,970.48x = 691,063,572,178,029,440 - Step 5: Solve for x
x = 691,063,572,178,029,440/933,121,970.48 - Step 6: Final answer
x = 740,592,970.74
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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.