Finding the Fourth Proportional to 717,885,812.20, 1,076,828,718.30 and 614,573,681.80
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Solution
The fourth proportional to 717,885,812.20, 1,076,828,718.30 and 614,573,681.80 is: 921,860,522.70
Step by Step Solution
- Step 1: Write the proportion equation
717,885,812.20 : 1,076,828,718.30 = 614,573,681.80 : x - Step 2: Convert to fraction form
717,885,812.20/1,076,828,718.30 = 614,573,681.80/x - Step 3: Cross multiply
717,885,812.20x = 1,076,828,718.30 × 614,573,681.80 - Step 4: Simplify right side
717,885,812.20x = 661,790,590,073,606,016 - Step 5: Solve for x
x = 661,790,590,073,606,016/717,885,812.20 - Step 6: Final answer
x = 921,860,522.70
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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.