Finding the Fourth Proportional to 847,165,510.80, 1,270,748,266.20 and 301,710,214.80
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Solution
The fourth proportional to 847,165,510.80, 1,270,748,266.20 and 301,710,214.80 is: 452,565,322.20
Step by Step Solution
- Step 1: Write the proportion equation
847,165,510.80 : 1,270,748,266.20 = 301,710,214.80 : x - Step 2: Convert to fraction form
847,165,510.80/1,270,748,266.20 = 301,710,214.80/x - Step 3: Cross multiply
847,165,510.80x = 1,270,748,266.20 × 301,710,214.80 - Step 4: Simplify right side
847,165,510.80x = 383,397,732,351,929,600 - Step 5: Solve for x
x = 383,397,732,351,929,600/847,165,510.80 - Step 6: Final answer
x = 452,565,322.20
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Double scale
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Similar ratio
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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.